Uniwersytet Wrocławski - Wydział Chemii

Informacje osobiste
Stopień/tytuł
prof. dr hab.
Imię i nazwisko
Ryszard Jakubas
Stanowisko

profesor zwyczajny

Telefon
+48 71 375 7236
Pokój
507 (budynek A)
User profile picture
Kariera naukowa
Mgr 1975, Dr 1980, Dr hab. 1989, Prof. 1998
Lista publikacji
Wersja do druku

Sumaryczny impact factor: 472.928

Liczba publikacji: 312

1. Piecha-Bisiorek Anna, Mencel Klaudia, Kinzhybalo Vasyl V., Szota Aleksandra, Jakubas Ryszard, Medycki Wojciech, Zawrocki Wiktor
Ferroelasticity and piezoelectricity of organic-inorganic hybrid materials with a one-dimensional anionic structure: so similar, yet so different.
CrystEngComm, 2018, 20, 2112-2119
IF: 3.474
10.1039/c8ce00140e

2. Owczarek Magdalena T., Szklarz Przemysław, Moskwa Marcin, Jakubas Ryszard
Morpholinium chloroindate(III) complex: a rare acentric structural arrangement leading to piezoelectric properties.
CrystEngComm, 2018, 20, 703-709
IF: 3.474
10.1039/c7ce01756a

3. Szklarz Przemysław, Jakubas Ryszard, Piecha-Bisiorek Anna, Bator Grażyna , Chański Michał, Medycki Wojciech, Wuttke J.
Organic-inorganic hybrid crystals, (2,4,6-CH3PyH)3Sb2Cl9 and (2,4,6-CH3PyH)3Bi2Cl9. Crystal structure characterization and tunneling of CH3 groups studied by 1H NMR and neutron spectroscopy.
Polyhedron, 2018, 139, 249-256
IF: 1.926
10.1016/j.poly.2017.10.030

4. Moskwa Marcin, Bator Grażyna , Piecha-Bisiorek Anna, Jakubas Ryszard, Medycki Wojciech, Ciżman Agnieszka, Baran Jan
X-ray structure and investigation of molecular motions by dielectric, vibrational and 1H NMR methods for two organic-inorganic hybrid piperazinium compounds: (C4H12N2)2[Sb2Cl10]·2H2O and (C4H12N2)2[Sb2Br10]·2H2O
Materials Research Bulletin, 2018, 104, 202-211
IF: 2.446
10.1016/j.materresbull.2018.03.048

5. Piecha-Bisiorek Anna, Gągor Anna, Jakubas Ryszard, Ciżman Agnieszka, Janicki Rafał, Medycki Wojciech
Ferroelectricity in bis(ethylammonium) pentachlorobismuthate(III) : synthesis, structure, polar and spectroscopic properties.
Inorganic Chemistry Frontiers, 2017, 4, 1281-1286
IF: 4.036
10.1039/c7qi00254h

6. Węcławik Magdalena, Baran Jan, Durlak Piotr, Marciniak Łukasz, Piecha-Bisiorek Anna, Jakubas Ryszard
Fourier transform infrared and Raman spectroscopy in the study of phase transitions in dipyrazolium iodide triiodide : experimental and theoretical analysis.
Spectrochimica Acta Part A-Molecular and Biomolecular Spectroscopy, 2017, 179, 83-94
IF: 2.536
10.1016/j.saa.2017.02.029

7. Piecha-Bisiorek Anna, Gągor Anna, Isakov Dmitry, Zieliński Piotr, Gałązka Mirosław, Jakubas Ryszard
Phase sequence in diisopropylammonium iodide: avoided ferroelectricity by the appearance of a reconstructed phase.
Inorganic Chemistry Frontiers, 2017, 4, 553-558
IF: 4.036
10.1039/c6qi00583g

8. Florek-Wojciechowska Małgorzata, Jakubas Ryszard, Kruk Danuta
Structure and dynamics of [NH2(CH3)2]3Sb2Cl9 by means of 1H NMR relaxometry : quadrupolar relaxation enhancement effects.
Physical Chemistry Chemical Physics, 2017, 19, 11197-11205
IF: 4.123
10.1039/C7CP00788D

9. Gągor Anna, Banach G., Węcławik Magdalena, Piecha-Bisiorek Anna, Jakubas Ryszard
The lone-pair-electron-driven phase transition and order-disorder processes in thermochromic (2-Mlm)Sbl4 organic-inorganic hybrid.
Dalton Transactions, 2017, 46, 16605-16614
IF: 4.029
10.1039/C7DT03622A

10. Florek-Wojciechowska M., Wojciechowski M., Jakubas Ryszard, Brym Szczepan, Kruk Danuta
1H NMR relaxometry and quadrupole relaxation enhancement as a sensitive probe of dynamical properties of solids—[C(NH2)3]3Bi2I9 as an example.
Journal of Chemical Physics, 2016, 144, 054501/1-054501/8
IF: 2.965
10.1063/1.4940680

11. Owczarek Magdalena T., Miniewicz Andrzej, Szklarz Przemysław, Jakubas Ryszard
Crystal structures and related to noncentrosymmetricity properties of 4-aminomorpholinium salts.
Chemical Physics Letters, 2016, 665, 31-35
IF: 1.815
10.1016/j.cplett.2016.10.051

12. Kruk Danuta, Florek-Wojciechowska Małgorzata, Jakubas Ryszard, Chaurasia Sujeet K., Brym Szczepan
Dynamics of molecular crystals by means of 1H NMR relaxometry: dynamical heterogeneity versus homogenous motion.
ChemPhysChem, 2016, 17, 2329-2339
IF: 3.075
10.1002/cphc.201600151

13. Wojciechowska Martyna, Szklarz Przemysław, Białońska Agata, Baran Jan, Janicki Rafał, Medycki Wojciech, Durlak Piotr, Piecha-Bisiorek Anna, Jakubas Ryszard
Enormous lattice distortion through an isomorphous phase transition in an organic-inorganic hybrid based on haloantimonate(III).
CrystEngComm, 2016, 18, 6184-6194
IF: 3.474
10.1039/C6CE01008C

14. Owczarek Magdalena T., Hujsak Karl A., Ferris Daniel P., Prokofjevs Aleksandrs, Majerz Irena, Szklarz Przemysław, Zhang Huacheng, Sarjeant Amy A., Stern Charlotte L., Jakubas Ryszard, Hong Seungbum, Dravid Vinayak P., Stoddart J. Fraser
Flexible ferroelectric organic crystals.
Nature Communications, 2016, 7, 13108/1-13108/10
IF: 12.124
10.1038/ncomms13108

15. Piecha-Bisiorek Anna, Bieńko Alina, Jakubas Ryszard, Boča Roman, Weselski Marek, Kinzhybalo Vasyl V., Pietraszko Adam, Wojciechowska Martyna, Medycki Wojciech, Kruk Danuta
Physical and structural characterization of imidazolium-based organic-inorganic hybrid: (C3N2H5)2[CoCl4].
Journal of Physical Chemistry A, 2016, 120, 2014-2021
IF: 2.847
10.1021/acs.jpca.5b11924

16. Przesławski J., Piecha-Bisiorek Anna, Jakubas Ryszard
Specific heat anomaly in ferroelectric: bis(imidazolium) pentachloroantimonate(III) (CNH5)2[SbCl5].
Journal of Molecular Structure, 2016, 1110, 97-101
IF: 1.753
10.1016/j.molstruc.2016.01.030

17. Węcławik Magdalena, Gągor Anna, Jakubas Ryszard, Piecha-Bisiorek Anna, Medycki Wojciech, Baran Jan, Zieliński Piotr, Gałązka Mirosław
Structure-property relationships in hybrid (C3H5N2)3[Sb2I9] and (C3H5N2)3[Bi2I9] isomorphs.
Inorganic Chemistry Frontiers, 2016, 3, 1306-1316
IF: 4.036
10.1039/C6QI00260A

18. Masierak Włodzimierz, Florek-Wojciechowska M., Oglodek I., Jakubas Ryszard, Privalov A. F., Kresse B., Fujara F., Kruk Danuta
Dynamics of [C3H5N2]6[Bi4Br18] by means of 1H NMR relaxometry and quadrupole relaxation enhancement.
Journal of Chemical Physics, 2015, 142, 204503/1- 204503/9
IF: 2.894
10.1063/1.4919966

19. Gągor Anna, Węcławik Magdalena, Bondzior Bartosz, Jakubas Ryszard
Periodic and incommensurately modulated phases in a (2-methylimidazolium)tetraiodobismuthate(III) thermochromic organic-inorganic hybrid.
CrystEngComm, 2015, 17, 3286-3296
IF: 3.849
10.1039/c5ce00046g

20. Wojtaś Maciej, Gagor A., Czupiński Olaf, Piecha-Bisiorek Anna, Isakov Dmitry, Medycki Wojciech, Jakubas Ryszard
Polar and antiferroelectric behaviour of a hybrid crystal - piperazinium perchlorate.
CrystEngComm, 2015, 17, 3171-3180
IF: 3.849
10.1039/c5ce00161g

21. Piecha-Bisiorek Anna, Białońska Agata, Jakubas Ryszard, Zieliński Piotr, Wojciechowska Martyna, Gałązka Mirosław
Strong improper ferroelasticity and weak canted ferroelectricity in a martensitic-like phase transition of diisobutylammonium bromide.
Advanced Materials, 2015, 27, 5023-5027
IF: 18.96
10.1002/adma.201501812

22. Węcławik Magdalena, Szklarz Przemysław, Medycki Wojciech, Janicki Rafał, Piecha-Bisiorek Anna, Zieliński Piotr, Jakubas Ryszard
Unprecedented transformation of [I- · I3-] to [I42-] polyiodides in the solid state : structures, phase transitions and characterization of dipyrazolium iodide triiodide.
Dalton Transactions, 2015, 44, 18447-18458
IF: 4.177
10.1039/C5DT02265G

23. Piecha-Bisiorek Anna, Jakubas Ryszard, Medycki Wojciech, Florek-Wojciechowska M., Wojciechowski M., Kruk Danuta
Dynamics of ferroelectric bis(imidazolium)pentachloroantimonate(III) by means of nuclear magnetic resonance 1H relaxometry and dielectric spectroscopy.
Journal of Physical Chemistry A, 2014, 118, 3564-3571
IF: 2.693
10.1021/jp501331c

24. Wojtaś Maciej, Czupiński Olaf, Tylczyński Z., Isakov Dmitry, Belsley M., Jakubas Ryszard
Optical nonlinearity and piezoelectricity in 2,4,6-trimethylpyridinium perchlorate.
Chemical Physics, 2014, 441, 59-65
IF: 1.652
10.1016/j.chemphys.2014.06.018

25. Chański Michał, Białońska Agata, Jakubas Ryszard, Piecha-Bisiorek Anna
Structural characterization and properties of bis (1,4-H2-1,2,4-triazolium) pentachlorobismuthate (III) and cocrystal of ammonium chloride with tris (1,4-H2-1,2,4-triazolium) hexachlorobismuthate (III).
Polyhedron, 2014, 71, 69-74
IF: 2.011
10.1016/j.poly.2013.12.038

26. Owczarek Magdalena T., Majerz Irena, Jakubas Ryszard
Weak hydrogen and dihydrogen bonds instead of strong N-H···O bonds of a tricyclic [1,2,4,5]-tetrazine derivative. Single-crystal X-ray diffraction, theoretical calculations and Hirshfeld surface analysis.
CrystEngComm, 2014, 16, 7638-7648
IF: 4.034
10.1039/C4CE00571F

27. Piecha Anna, Gągor Anna, Węcławik Magdalena, Jakubas Ryszard, Medycki Wojciech
Anomalous dielectric behaviour in centrosymmetric organic-inorganic hybrid chlorobismuthate(III) containing functional N,N-dimethylethylammonium ligand : crystal structure and properties.
Materials Research Bulletin, 2013, 48, 151-157
IF: 1.968
10.1016/j.materresbull.2012.10.018

28. Przesławski J., Medycki Wojciech, Piecha Anna, Jakubas Ryszard, Kruk Danuta
Dynamics and ferroelectric phase transition of (C3N2H5)5Bi2Br11 by means of ac calorimetry and 1H NMR relaxometry.
Chemical Physics, 2013, 410, 19-24
IF: 2.028
10.1016/j.chemphys.2012.10.009

29. Owczarek Magdalena T., Jakubas Ryszard, Pietraszko Adam, Medycki Wojciech, Baran Jan
Investigation of structure-properties relationship in a novel family of halogenoantimonates(III) and halogenobismuthates(III) with morpholinium cation: [NH2(C2H4)2O]MX4. Crystal structure, phase transitions and dynamics of molecules.
Dalton Transactions, 2013, 42, 15069-15079
IF: 4.097
10.1039/c3dt51726h

30. Medycki Wojciech, Latanowicz L., Szklarz Przemysław, Jakubas Ryszard
Proton dynamics at low and high temperatures in a novel ferroelectric diammonium hypodiphosphate (NH4)2H2P2O6 (ADhP) as studied by 1H spin-lattice relaxation time and second moment of NMR line.
Journal of Magnetic Resonance, 2013, 231, 54-60
IF: 2.315
10.1016/j.jmr.2013.03.005

31. Piecha Anna, Gągor Anna, Jakubas Ryszard, Szklarz Przemysław
Room-temperature ferroelectricity in diisopropylammonium bromide.
CrystEngComm, 2013, 15, 940-944
IF: 3.858
10.1039/c2ce26580j

32. Węcławik Magdalena, Gągor Anna, Piecha Anna, Jakubas Ryszard, Medycki Wojciech
Synthesis, crystal structure and phase transitions of a series of imidazolium iodides.
CrystEngComm, 2013, 15, 5633-5640
IF: 3.858
10.1039/c3ce40559a

33. Tarasiewicz Jolanta, Jakubas Ryszard, Majerz Irena, Baran Jan, Gągor Anna, Miniewicz Andrzej
The IR temperature studies of phase transition of 4-aminopyridinium-hydrogen maleate-maleic acid: isotopic effect and nonlinear optical properties.
Vibrational Spectroscopy, 2013, 66, 93-103
IF: 1.547
10.1016/j.vibspec.2013.02.004

34. Owczarek Magdalena T., Szklarz Przemysław, Jakubas Ryszard, Miniewicz Andrzej
[NH2(C2H4)2O]MX5: a new family of morpholinium nonlinear optical materials among halogenoantimonate(III) and halogenobismuthate(III) compounds. Structural characterization, dielectric and piezoelectric properties.
Dalton Transactions, 2012, 41, 7285-7294
IF: 3.806

35. Owczarek Magdalena T., Jakubas Ryszard, Kinzhybalo Vasyl V., Medycki Wojciech, Kruk Danuta, Pietraszko Adam, Gałązka Mirosław, Zieliński Piotr
Crystal structure and characterization of a novel ferroelastic ionic crystal: 1-aminopyridinium iodide (C5H7N2)+I-.
Chemical Physics Letters, 2012, 537, 38-47
IF: 2.145

36. Wojtaś Maciej, Gągor Anna, Czupiński Olaf, Medycki Wojciech, Jakubas Ryszard
Crystal structure and characterization of the novel NH+···N hydrogen bonded polar crystal [NH2(CH2)4NH][BF4].
Journal of Solid State Chemistry, 2012, 187, 35-44
IF: 2.04

37. Piecha Anna, Jakubas Ryszard, Kinzhybalo Vasyl V., Medycki Wojciech
Crystal structure, dielectric properties and molecular motions of molecules in thiazolium halometalates(III): (C3H4NS)6M4Br18·2H2O (M=Sb, Bi).
Journal of Molecular Structure, 2012, 1013, 55-60
IF: 1.404

38. Owczarek Magdalena T., Jakubas Ryszard, Majerz Irena, Baran Jan
Experimental (IR) and theoretical (LDA) studies of the structure and vibrational-reorientational dynamics of ferroelastic 1-aminopyridinium iodide.
Chemical Physics, 2012, 405, 167-174
IF: 1.957

39. Zdanowska-Frączek M., Frączek Z. J., Szklarz Przemysław, Jakubas Ryszard
High-pressure dielectric studies of a novel hydrogen-bonded ferroelectric (NH4)2H2P2O6.
Journal of Physics and Chemistry of Solids, 2012, 73, 953-956
IF: 1.527

40. Kruk Danuta, Privalov Alexei, Medycki Wojciech, Uniszkiewicz Cezary, Masierak Włodzimierz, Jakubas Ryszard
NMR studies of solid-state dynamics.
Annual Reports on NMR Spectroscopy, 2012, 76, 67-138
IF: 1.424

41. Piecha Anna, Białońska Agata, Jakubas Ryszard
Novel organic-inorganic hybrid ferroelectric: bis(imidazolium) pentachloroantimonate(III), C3N2H5)2SbCl5.
Journal of Materials Chemistry, 2012, 22, 333-336
IF: 6.108

42. Szklarz Przemysław, Przesławski J., Kosturek Bogdan, Jakubas Ryszard
Phase transition of the novel hydrogen bonded ferroelectric (NH4)2H2P2O6 studied by specific heat measurements.
Thermochimica Acta, 2012, 527, 8-12
IF: 1.989

43. Płowaś Iwona, Bator Grażyna , Jakubas Ryszard, Baran Jan
Thermal, dielectric and vibrational properties of allylammonium chloroantimonates(III) and chlorobismuthates(III): [C3H5NH3]3[BiCl6] and [C3H5NH3]3[SbCl5]˙Cl.
Vibrational Spectroscopy, 2012, 62, 121-132
IF: 1.747

44. Płowaś Iwona, Białońska Agata, Bator Grażyna , Jakubas Ryszard, Medycki Wojciech, Baran Jan
Tris(allylammonium) hexabromobismuthate(III) - crystal structure, phase transitions and thermal, dielectric, vibrational and1H NMR properties over a range of temperatures.
European Journal of Inorganic Chemistry, 2012, 636-646
IF: 3.12

45. Latanowicz L., Medycki Wojciech, Jakubas Ryszard
Complex molecular dynamics of (CH3NH3)5Bi2Br11 (MAPBB) protons from NMR relxation and second moment of NMR spectrum.
Journal of Magnetic Resonance, 2011, 211, 207-216
IF: 2.138

46. Gagor A., Piecha Anna, Jakubas Ryszard, Miniewicz Andrzej
Crystal structure and characterization of a novel acentric imidazolium analog [C3N2H5+][Br-].
Chemical Physics Letters, 2011, 503, 134-138
IF: 2.337

47. Tarasiewicz Jolanta, Gągor Anna, Jakubas Ryszard, Kulicka Beata, Baran Jan
Crystal structure, thermal, dielectric and vibrational properties of a novel polar crystal: 4-aminopyridinum-hydrogen maleate-maleic acid, [4-NH2C5H4NH][C4H3O4][C4H4O4].
Journal of Molecular Structure, 2011, 1002, 28-36
IF: 1.634

48. Wojtaś Maciej, Bil Andrzej, Jakubas Ryszard, Gągor Anna, Pietraszko Adam, Czupiński Olaf, Tylczyński Z., Isakov Dmitry
Organic-inorganic compounds with strong nonlinear optical properties based on 2,4,6-trimethylpyridinium and tetrahedral BF4- networks.
Physical Review B, 2011, 83, 1-13
IF: 3.691

49. Płowaś Iwona, Szklarz Przemysław, Jakubas Ryszard, Bator Grażyna
Structural, thermal and dielectric studies on the novel solution grown (4-dimethylaminopyridinium) chloroantimonate(III) and chlorobismuthate(III) crystals.
Materials Research Bulletin, 2011, 46, 1177-1185
IF: 2.105

50. Kruk Danuta, Medycki Wojciech, Przesławski J., Dacko S., Piecha Anna, Jakubas Ryszard
Thermodynamic properties and molecular motions in ferroelectric (C3N2H5)5Sb2Br11.
Chemical Physics, 2011, 380, 86-91
IF: 1.896

51. Owczarek Magdalena T., Jakubas Ryszard, Bator Grażyna , Pawlukojć Andrzej, Baran Jan, Przesławski J., Medycki Wojciech
Vibrational and thermodynamic properties and molecular motions in the incommensurate crystal of morpholinium tetrafluoroborate studied by 1 H NMR.
Chemical Physics, 2011, 381, 11-20
IF: 1.896

52. Kruk Danuta, Medycki Wojciech, Mielczarek A., Jakubas Ryszard, Uniszkiewicz Cezary
Complex nuclear relaxation processes in guanidinium compounds [C(NH2)3]3Sb2X9 (X= Br, Cl): effects of quadrupolar interactions.
Applied Magnetic Resonance, 2010, 39, 233-249
IF: 1.126

53. Kulicka Beata, Lis Tadeusz, Kinzhybalo Vasyl V., Jakubas Ryszard, Piecha Anna
Novel anionic water-containing inorganic fragment in [4-NH2PyH]8[Bi2Cl11] [Bi2Cl9(H2O)2]: structural characterization, thermal, dielectric and vibrational properties.
Polyhedron, 2010, 29, 2014-2022
IF: 2.034

54. Płowaś Iwona, Białońska Agata, Jakubas Ryszard, Bator Grażyna , Zarychta B., Baran Jan
Structural characterization, thermal, dielectric and vibrational properties of tris(allylammonium) hexabromoantimonate(III), C3H5NH3)3SbBr6.
Chemical Physics, 2010, 375, 16-25
IF: 2.017

55. Wojtaś Maciej, Medycki Wojciech, Baran Jan, Jakubas Ryszard
Thermal, dielectric and vibrational properties of ferroelastic [(CH3)3PH]3[Sb2Cl9] crystal. Molecular motion of trimethylphosphonium cations studied by proton magnetic resonance.
Chemical Physics, 2010, 371, 66-75
IF: 2.017

56. Piecha Anna, Gągor Anna, Pietraszko Adam, Jakubas Ryszard
Unprecedented solid-state chemical reaction—from (C3N2H5)3SbBr6·H2O to (C3N2H5)5Sb2Br11. From centrosymmetric to non-centrosymmetric crystal structure.
Journal of Solid State Chemistry, 2010, 183, 3058-3066
IF: 2.261

57. Wojtaś Maciej, Gągor Anna, Czupiński Olaf, Pietraszko Adam, Jakubas Ryszard
2,4,6-trimethylpyridinium perchlorate: polar properties and correlations with molecular structure of organic-inorganic hybrid crystal.
Journal of Solid State Chemistry, 2009, 182, 3021-3030
IF: 2.34

58. Xu G., Li Yan, Zhou W.-W., Wang G.-J., Long X.-F., Cai L.-Z., Wang M.-S., Guo G.-C., Huang J.-S., Bator Grażyna , Jakubas Ryszard
A ferroelectric inorganic-organic hybrid based on NLO-phore stilbazolium.
Journal of Materials Chemistry, 2009, 19, 2179-2183
IF: 4.795

59. Latanowicz L., Medycki Wojciech, Jakubas Ryszard
Complex methyl groups dynamics in [(CH3)4P]3Sb2Br9 (PBA) from low to high temperatures by proton spin-lattice relaxation and narrowing of proton NMR spectrum.
Solid State Nuclear Magnetic Resonance, 2009, 36, 144-150
IF: 1.368

60. Szklarz Przemysław, Owczarek Magdalena T., Bator Grażyna , Lis Tadeusz, Gatner Kazimierz, Jakubas Ryszard
Crystal structure, properties and phase transitions of morpholinum tetrafluoroborate [C4H10NO][BF4].
Journal of Molecular Structure, 2009, 929, 48-57
IF: 1.551

61. Piecha Anna, Jakubas Ryszard
Dielectric critical slowing down in pentakis(imidazolium) undecabromodibismuthate(III): (C3N2H5)5Bi2Br11.
Journal of Physics-Condensed Matter, 2009, 21, 1-5
IF: 1.964

62. Piecha Anna, Jakubas Ryszard, Bator Grażyna , Baran Jan
Infrared investigations of the order-disorder ferroelectric phase transitions in imidazolium halogenobismuthates(III) and halogenoantimonates(III): (C3N2H5)5Bi2Cl11, (C3N2H5)5Bi2Br11 and (C3N2H5)5Sb2Br11.
Vibrational Spectroscopy, 2009, 51, 226-237
IF: 1.931

63. Zdanowska-Frączek M., Hołderna-Natkaniec K., Frączek Z. J., Jakubas Ryszard
Molecular dynamics and electrical conductivity of (C3N2H5)5Bi2Cl11.
Solid State Ionics, 2009, 180, 9-12
IF: 2.162

64. Tarasiewicz Jolanta, Jakubas Ryszard, Bator Grażyna , Zaleski J., Baran Jan, Medycki Wojciech
Structural characterization, thermal, dielectric, vibrational properties and molecular dynamics of (C5H5NH)3BiCl6.
Journal of Molecular Structure, 2009, 932, 6-15
IF: 1.551

65. Piecha Anna, Jakubas Ryszard, Pietraszko Adam, Baran Jan, Medycki Wojciech, Kruk Danuta
Structural characterization, thermal, dielectric, vibrational properties and molecular motions in [C3N2H5]6[Bi4Br18].
Journal of Solid State Chemistry, 2009, 182, 2949-2960
IF: 2.34

66. Zdanowska-Frączek M., Wysocka M., Frączek Z. J., Jakubas Ryszard
Electric properties of (C3H5N2)5Bi2Cl11 crystal in the paraelectric-ferroelectric phase.
Solid State Ionics, 2008, 178, 1731-1734
IF: 2.425

67. Gagor A., Wojtaś Maciej, Pietraszko Adam, Jakubas Ryszard
From six- to five-coordinated SbIII in [(CH3)3PH]3[Sb2Cl9]: transition pathways from single-crystal X-ray diffraction.
Acta Crystallographica Section B: Structural Science Crystal Engineering and Materials, 2008, B64, 558-566
IF: 2.341

68. Hołderna-Natkaniec K., Natkaniec I., Jakubas Ryszard, Nowak D., Medycki Wojciech
Internal dynamics of (C3N2H5)5Bi2Cl11 studied by IINS,1H NMR and QC methods.
Journal of Molecular Structure, 2008, 891, 143-150
IF: 1.594

69. Piecha Anna, Jakubas Ryszard, Kinzhybalo Vasyl V., Lis Tadeusz
Structural and dielectric properties of thiazolium chlorobismuthate(III) and chloroantimonate(III).
Journal of Molecular Structure, 2008, 887, 194-200
IF: 1.594

70. Piecha Anna, Pietraszko Adam, Bator Grażyna , Jakubas Ryszard
Structural characterization and ferroelectric ordering in (C3N2H5)5Sb2Br11.
Journal of Solid State Chemistry, 2008, 118, 1155-1166
IF: 1.91

71. Tarasiewicz Jolanta, Jakubas Ryszard, Zaleski J., Baran Jan
Structural characterization, thermal, dielectric and spectroscopic properties of di(n-pentylammonium) pentabromoantimonate(III): [n-C5H11NH3]2[SbBr5].
Journal of Molecular Structure, 2008, 876, 86-101
IF: 1.594

72. Piecha Anna, Białońska Agata, Jakubas Ryszard, Medycki Wojciech
Structural polymorphism in new organic-inorganic hybrid:pyrazolium bromoantimonates(III) [C3N2H5]6Sb4Br18·2H2O (tetragonal and triclinic forms). Thermal, dielectric and proton magnetic resonance (1H NMR) studies on the tetragonal form.
Solid State Sciences, 2008, 10, 1469-1479
IF: 1.742

73. Piecha Anna, Białońska Agata, Jakubas Ryszard
Structure and ferroelectric properties of [C3N2H5]5[Bi2Br11].
Journal of Physics-Condensed Matter, 2008, 20, 1-9
IF: 1.9

74. Szklarz Przemysław, Pietraszko Adam, Jakubas Ryszard, Bator Grażyna , Zieliński Piotr, Gałązka Mirosław
Structure, phase transitions and molecular dynamics of [C(NH2)3]3[M2I9], M=Sb, Bi.
Journal of Physics-Condensed Matter, 2008, 20, 1-12
IF: 1.9

75. Zdanowska-Frączek M., Frączek Z. J., Piecha Anna, Jakubas Ryszard, Rzepczyńska A.
The influence of hydrostatic pressure on the ferroelectric phase transition in (C3N2H5)5Bi2Cl11.
Journal of Physics-Condensed Matter, 2008, 20, 1-6
IF: 1.9

76. Owczarek Magdalena T., Szklarz Przemysław, Jakubas Ryszard, Lis Tadeusz
The low-temperature phase of morpholinium tetrafluoroborate.
Acta Crystallographica Section E: Structure Reports Online, 2008, E64, o667, 1-11
IF: 0.367
10.1107/S1600536808004339

77. Wojtaś Maciej, Jakubas Ryszard, Zaleski J., Bator Grażyna , Baran Jan
The phase situation and ferroelectric properties in the mixed crystals [4-NH2PyH][SbCL4(1x)Br4x].
Journal of Molecular Structure, 2008, 887, 262-268
IF: 1.594

78. Piecha Anna, Jakubas Ryszard
Dielectric critical slowing down in ferroelectric (C3N2H5)5Sb2Br11.
Journal of Physics-Condensed Matter, 2007, 19, 1-8
IF: 1.886

79. Piecha Anna, Jakubas Ryszard, Pietraszko Adam
Phase transitions and electric properties of imidazolium chlorobismuthate(III): [C3H5N2]6[Bi4Cl18].
Journal of Molecular Structure, 2007, 829, 149-154
IF: 1.486

80. Piecha Anna, Jakubas Ryszard, Pietraszko Adam, Baran Jan
Structural characterization and spectroscopic properties of imidazolium chlorobismuthate(III) : [C3H5N2]6[Bi4Cl18].
Journal of Molecular Structure, 2007, 844-845, 132-139
IF: 1.486

81. Piecha Anna, Kinzhybalo Vasyl V., Jakubas Ryszard, Baran Jan, Medycki Wojciech
Structural characterization, molecular dynamics, dielectric and spectroscopic properties of tetrakis(pyrazolium)bis(μ2-bromo-tetrabromobismuthate(III) dihydrate, [C3N2H5]4[Bi2Br10]·2H2O.
Solid State Sciences, 2007, 9, 1036-1048
IF: 1.698

82. Czupiński Olaf, Wojtaś Maciej, Pietraszko Adam, Jakubas Ryszard
Structural characterization, phase transition and dielectric properties of 4-cyanopyridynium perchlorate monohydrate : [(4-CNC5H4NH)][ClO4]·H2O.
Solid State Sciences, 2007, 9, 108-115
IF: 1.698

83. Szklarz Przemysław, Jakubas Ryszard, Bator Grażyna , Lis Tadeusz, Kinzhybalo Vasyl V., Baran Jan
Structural characterization, spectroscopic properties and phase transition in 4-aminopyridinium tetrachlorogallate(III): [ 4-NH2PyH][GaCl4].
Journal of Physics and Chemistry of Solids, 2007, 68, 2303-2316
IF: 0.899

84. Piecha Anna, Kinzhybalo Vasyl V., Ślepokura Katarzyna, Jakubas Ryszard
Structural characterization, thermal and electric properties of imidazolium bromoantimonate(III): [C3H5N2]3[Sb2Br9].
Journal of Solid State Chemistry, 2007, 180, 265-275
IF: 2.149

85. Wojtaś Maciej, Zaleski J., Medycki Wojciech, Jakubas Ryszard
Structure and properties of tris(tetramethylammonium) nonabromodiarsenate (III), [(CH3)4 N]3[As2Br9].
Journal of Physics-Condensed Matter, 2007, 19, 1-17
IF: 1.886

86. Przesławski J., Kosturek Bogdan, Dacko S., Jakubas Ryszard
Thermal and optical properties of the ferroelectric (C3N2H5)5Bi2Cl11 crystal.
Solid State Communications, 2007, 142, 713-717
IF: 1.535

87. Bator Grażyna , Jakubas Ryszard, Baran Jan
Vibrational study of the structural phase transitions in 4-aminopyridinium tetrachloroantimonate(III) (4-APCA) ferroelectric crystal by infrared spectroscopy.
Vibrational Spectroscopy, 2007, 45, 36-45
IF: 1.78

88. Kulicka Beata, Kinzhybalo Vasyl V., Jakubas Ryszard, Ciunik Zbigniew, Baran Jan, Medycki Wojciech
Crystal structure and phase transition of 4-aminopyridinium tetrachlorobismuthate(III), [4-NH2C5H4NH][BiCl4], as studied by x-ray diffraction, dielectric, proton NMR and infrared spectroscopy.
Journal of Physics-Condensed Matter, 2006, 18, 5087-5104
IF: 2.038

89. Kulicka Beata, Jakubas Ryszard, Bednarska-Bolek Beata, Bator Grażyna , Ciunik Zbigniew
Crystal structure and phase transitions in dipropylammonium hexachloroantimonate(V): [N(C3H7)2H2][SbCl6].
Journal of Molecular Structure, 2006, 792-793, 151-156
IF: 1.495

90. Tarasiewicz Jolanta, Jakubas Ryszard, Baran Jan
Infrared studies of phase transitions in ferroelectric (C5H5NH)5Bi2Br11.
Vibrational Spectroscopy, 2006, 40, 55-65
IF: 1.88

91. Rogowski R. Z., Matyjasek K., Jakubas Ryszard
Polarization switching in (CH3NH3)5Bi2Cl11 ferroelectric crystals.
Crystal Research and Technology, 2006, 41, 557-561
IF: 0.863

92. Kulicka Beata, Jakubas Ryszard, Ciunik Zbigniew
Structural characterization and properties of [4-CH3C5H4NH][SbBr4]. The mechanism of phase transitions in 4-methylpyridinium bromoantimonates(III).
Solid State Sciences, 2006, 8, 1229-1236
IF: 1.752

93. Czupiński Olaf, Wojtaś Maciej, Zaleski J., Jakubas Ryszard, Medycki Wojciech
Structure and properties of 2-cyanopyridinium perchlorate [2-CNPyH][ClO4].
Journal of Physics-Condensed Matter, 2006, 18, 3307-3324
IF: 2.038

94. Kulicka Beata, Jakubas Ryszard, Pietraszko Adam, Medycki Wojciech, Świergiel J.
Structure, phase transitions and molecular dynamics in 4-aminopyridinium hexachloroantimonate(V), [4-NH2C5H4NH][SbCl6].
Journal of Molecular Structure, 2006, 783, 88-95
IF: 1.495

95. Czupiński Olaf, Wojtaś Maciej, Ciunik Zbigniew, Jakubas Ryszard
Structure, phase transitions, dielectric and spectroscopic studies of the 2-aminopyrimidinium salts: [2-NH2C4N2H3)2H][ClO4] and [2-NH2C4N2H4][BF4].
Solid State Sciences, 2006, 8, 86-96
IF: 1.752

96. Tarasiewicz Jolanta, Jakubas Ryszard, Baran Jan, Pietraszko Adam
Thermal, dielectric properties and vibrational spectra of [η-C4H9NH3]2[BiBr5] crystal.
Journal of Molecular Structure, 2006, 792-793, 265-273
IF: 1.495

97. Medycki Wojciech, Świergiel J., Jakubas Ryszard, Hołderna-Natkaniec K.
1H NMR study of molecular dynamics of 4-apyH cation under high hydrostatic pressure.
Acta Physica Polonica A, 2005, 108, 161-164
IF: 0.394

98. Zdanowska-Frączek M., Jakubas Ryszard, Czarnecki P.
Compositional and pressure effects on the phase transition in ferroelectric NH4H(ClH2CCOO)2.
Ferroelectrics, 2005, 316, 97-101
IF: 0.459

99. Piecha Anna, Bator Grażyna , Jakubas Ryszard
Critical slowing down of low-frequency dielectric relaxation in ferroelectric (C3N2H5)5Bi2Cl11.
Journal of Physics-Condensed Matter, 2005, 17, 411-417
IF: 2.145

100. Zdanowska-Frączek M., Jakubas Ryszard, Czarnecki P.
Decoupling of the order-disorder and displacive contributions to the phase transition in NH4H(ClH2CCOO)2.
Journal of Physics and Chemistry of Solids, 2005, 66, 845-850
IF: 1.41

101. Rogowski R. Z., Matyjasek K., Jakubas Ryszard
Kinetics of ferroelectric switching in unipolar (CH3NH3)5Bi2Br11.
Journal of Physics D-Applied Physics, 2005, 38, 4145-4152
IF: 1.957

102. Dziedzic J., Mróz J., Jakubas Ryszard
Pyroelectric and dilatomeric studies on the low temperature ferroelectric phase transition of (CH3NH3)5Bi2Br11.
Acta Physica Polonica A, 2005, 108, 505-511
IF: 0.394

103. Jakubas Ryszard, Piecha Anna, Pietraszko Adam, Bator Grażyna
Structure and ferroelectric properties of (C3N2H5)5Bi2Cl11.
Physical Review B, 2005, 72, 1-8
IF: 3.185

104. Jakubas Ryszard, Bednarska-Bolek Beata, Zaleski J., Medycki Wojciech, Hołderna-Natkaniec K., Zieliński Piotr, Gałązka Mirosław
Structure, phase transitions and molecular dynamics in ferroelastic crystal pyrrolidinium hexachloroantimonate(V), [C4H8NH2][SbCl6].
Solid State Sciences, 2005, 7, 381-390
IF: 1.708

105. Latanowicz L., Medycki Wojciech, Jakubas Ryszard
The effect of low-temperature dynamics of the dimethylammonium group in [(CH3)2NH2]3Sb2Cl9 on proton spin-lattice relaxation and narrowing of the proton NMR.
Journal of Physical Chemistry A, 2005, 109, 3097-3104
IF: 2.898

106. Zdanowska-Frączek M., Jakubas Ryszard
The pressure influence on the incommensurate-commensurate ferroelectric phase transition in [4-NH2C5H4NH][SbCl4].
Solid State Communications, 2005, 136, 470-474
IF: 1.489

107. Szklarz Przemysław, Zaleski J., Jakubas Ryszard, Bator Grażyna , Medycki Wojciech, Falińska K.
The structure, phase transition and molecular dynamics of [C(NH2)3]3[Sb2Br9].
Journal of Physics-Condensed Matter, 2005, 17, 2509-2528
IF: 2.145

108. Wojtaś Maciej, Jakubas Ryszard, Baran Jan
Vibrational study of the ferroelastic phase transition in [(CH3)4P]3[Bi2Cl9] and [(CH3)4P]3[Bi2Br9] .
Vibrational Spectroscopy, 2005, 39, 23-30
IF: 1.758

109. Medycki Wojciech, Świergiel J., Holderna-Natkaniec K., Jurga K., Jakubas Ryszard
1H NMR studies on molecular motions of 4-aminopyridinium and pyrrolidinium cations in new ferroics.
Solid State Nuclear Magnetic Resonance, 2004, 25, 129-132
IF: 1.7

110. Gatner Kazimierz, Jakubas Ryszard
A novel experimental method: electrochemical detection of the phase transition in frroelectric single crystals.
Chemical Physics Letters, 2004, 384, 262-265
IF: 2.438

111. Majerz Irena, Jakubas Ryszard
Anomalous temperature effect on the hydrogen bond strength and phase transition in 2,4,6-trimethylpyridinium pentachlorophenolate.
Journal of Molecular Structure, 2004, 694, 45-53
IF: 1.2

112. Kulicka Beata, Jakubas Ryszard, Pietraszko Adam, Bator Grażyna , Baran Jan
Crystal structure thermal, dielectric and vibrational studies of the [4-C2H5PyH]4[Sb2Cl10] crystal.
Solid State Sciences, 2004, 6, 1273-1286
IF: 1.598

113. Zdanowska-Frączek M., Jakubas Ryszard, Krupski M.
Effect of hydrostatic pressure on the phase transition temperature in [NH2(CH3)2]3Sb2Cl9.
Ferroelectrics, 2004, 302, 91-93
IF: 0.517

114. Czupiński Olaf, Jakubas Ryszard, Pietraszko Adam
On structural phase transitions in 4-aminopyridinium fluoroborate, [4-NH2C5H5N][BF4]: differential scanning calorimetry, dielectric and infrared studies.
Journal of Molecular Structure, 2004, 704, 177-187
IF: 1.2

115. Tarasiewicz Jolanta, Jakubas Ryszard, Baran Jan, Pietraszko Adam
On the structural phase transitions in [η-C4H9NH3]2[SbBr5]: thermal, dielectric and infrared studies.
Journal of Molecular Structure, 2004, 697, 161-171
IF: 1.2

116. Wojtaś Maciej, Jakubas Ryszard, Ciunik Zbigniew, Medycki Wojciech
Structure and phase transitions in [(CH3)4P]3[Sb2Br9] and [(CH3)4P]3[Bi2Br9].
Journal of Solid State Chemistry, 2004, 177, 1575-1584
IF: 1.815

117. Wojtaś Maciej, Jakubas Ryszard
Structure and properties of [(CH3)4P]3[Sb2Cl9] and [(CH3)4P]3[Bi2Cl9].
Journal of Physics-Condensed Matter, 2004, 16, 7521-7534
IF: 2.049

118. Kulicka Beata, Jakubas Ryszard, Bator Grażyna , Ciunik Zbigniew, Medycki Wojciech
Structure and properties of [2-NH2C5H4NH][SbCl4] and [2-NH2C5H4NH][SbBr4].
Journal of Physics-Condensed Matter, 2004, 16, 8155-8172
IF: 2.049

119. Kulicka Beata, Jakubas Ryszard, Ciunik Zbigniew, Bator Grażyna , Medycki Wojciech, Świergiel J., Baran Jan
Structure, phase transitions and molecular dynamics in 4-methylpyridinium tetrachloroantimonate(III), [4-CH3C5H4NH][SbCl4].
Journal of Physics and Chemistry of Solids, 2004, 65, 871-879
IF: 0.988

120. Zdanowska-Frączek M., Jakubas Ryszard, Krupski M.
The effect of hydrostatic pressure on the ferroelectric phase transition in [NH2(CH3)2]3[Sb2Cl9].
Journal of Physics and Chemistry of Solids, 2004, 65, 1679-1682
IF: 0.988

121. Wojtaś Maciej, Bator Grażyna , Jakubas Ryszard, Zaleski J.
Crystal structure, phase transition and ferroelectric properties of the [(CH3)3NH]3[Sb2Cl9(1-x)Br9x] (TMACBA) mixed crystals.
Journal of Physics-Condensed Matter, 2003, 15, 5765-5781
IF: 1.757

122. Wojtaś Maciej, Bator Grażyna , Jakubas Ryszard, Zaleski J., Kosturek Bogdan, Baran Jan
Crystal structure, phase transitions and ferroelastic properties of [(CH3)2NH2]3[Bi2Cl9].
Journal of Solid State Chemistry, 2003, 173, 425-434
IF: 1.413

123. Wojtaś Maciej, Shvartsman V. V., Jakubas Ryszard, Kholkin Andrei L.
Domain structure, local hysteresis and ferroelectric phase transition in (CH3NH3)5Bi2Br11 (MAPBBB) single crystals.
Ferroelectrics, 2003, 295, 121-129
IF: 0.406

124. Bator Grażyna , Jakubas Ryszard
Dynamical dielectric properties of [4-NH2C5H4NH][SbCl4] in the incommensurate phase.
Journal of the Physical Society Japan, 2003, 72, 2369-2371
IF: 1.903

125. Jakubas Ryszard, Ciunik Zbigniew, Bator Grażyna
Ferroelectric properties of [4-NH2C5H4NH][SbCl4].
Physical Review B, 2003, 67, 1-6
IF: 2.962

126. Jakubas Ryszard, Bator Grażyna , Ciunik Zbigniew
Halogenoantimonates(III) and halogenobismuthates(III)-a rich family of ferroelectric crystals.
Ferroelectrics, 2003, 295, 3-8
IF: 0.406

127. Medycki Wojciech, Holderna-Natkaniec K., Swiergiel J., Jakubas Ryszard
Molecular dynamics in ferroelectric 4-aminopyridinium tetrachloroantimonate(III), [4-NH2C5H4NH][SbCl4].
Solid State Nuclear Magnetic Resonance, 2003, 24, 209-217
IF: 1.453

128. Pawlaczyk Czesław, Jakubas Ryszard
On the dynamic dielectric behaviour of (CH3NH3)3Sb2Br9(MABA).
Zeitschrift für Naturforschung Section A: A Journal of Physical Sciences, 2003, 58a, 189-193
IF: 0.681

129. Jakubas Ryszard, Bator Grażyna , Ciąpała Paweł
Phase transitions in guanidinium bromoantimonate(V) [C(NH2)3]SbBr6.
Polish Journal of Chemistry, 2003, 77, 123-127
IF: 0.515

130. Przesławski J., Kosturek Bogdan, Jakubas Ryszard
Specific heat and linear birefringence behaviour of 4-aminopyridinium tetrachloroantimonate (III), [4-NH2C5H4NH][SbCl4].
Journal of Physics-Condensed Matter, 2003, 15, 643-648
IF: 1.757

131. Zdanowska-Frączek M., Kozak A., Jakubas Ryszard, Wąsicki J., Utrecht R.
1H NMR study on the motion of NH4+ in ferroelectric NH4H(ClH2CCOO)2 and mixed (NH4)1-xRbxH(ClH2CCOO)2 (x=0.15).
Zeitschrift für Naturforschung Section A: A Journal of Physical Sciences, 2002, 57a, 883-887
IF: 0.732

132. Wojtaś Maciej, Bator Grażyna , Jakubas Ryszard
Crystal structure and ferroelectric properties in the mixed crystals: [(CH3)2NH2]3Sb2(1-x)Bi2xCl9 and [(CH3)3NH]3Sb2Cl9(1-x)Br9x.
Ferroelectrics, 2002, 272, 297-302
IF: 0.408

133. Wojtaś Maciej, Ciunik Zbigniew, Bator Grażyna , Jakubas Ryszard
Crystal structure, thermal and electric behaviour of [(CH3)2NH2]3[As2Cl9] and [(CH3)2NH2][AsOCl2].
Zeitschrift für Anorganische und Allgemeine Chemie, 2002, 628, 516-522
IF: 1.196

134. Grottel M., Pająk Z., Jakubas Ryszard
NMR study of guanidinium cation dynamics in C(NH2)3SbCl6.
Molecular Physics, 2002, 100, 1969-1973
IF: 1.617

135. Medycki Wojciech, Jakubas Ryszard
NMR study of phase transition in new ferroelectric crystal—(C5H5NH)5Bi2Br11.
Solid State Nuclear Magnetic Resonance, 2002, 21, 44-52
IF: 1.333

136. Tarasiewicz Jolanta, Jakubas Ryszard, Baran Jan
Raman studies of the anionic sublattice vibrations in (C5H5NH)6Bi4Cl18.
Journal of Molecular Structure, 2002, 614, 333-338
IF: 1.122

137. Bednarska-Bolek Beata, Ciunik Zbigniew, Jakubas Ryszard, Bator Grażyna , Ciąpała Paweł
Structure and phase transitions in chloroantimonate(V) crystals: [(C2H5)3NH]SbCl6 and [(C2H5)3NH]SbCl6·1/2[(C2H5)3NH]Cl.
Journal of Physics and Chemistry of Solids, 2002, 63, 507-518
IF: 1.14

138. Czupiński Olaf, Bator Grażyna , Ciunik Zbigniew, Jakubas Ryszard, Medycki Wojciech, Świergiel J.
Structure, phase transitions and molecular motions in 4-aminopyridinium perchlorate.
Journal of Physics-Condensed Matter, 2002, 14, 8497-8512
IF: 1.775

139. Bednarska-Bolek Beata, Jakubas Ryszard, Medycki Wojciech, Nowak D., Zaleski J.
Structure, phase transitions and molecular motions in ferroelastic (C4H8NH2)SbCl6·(C4H8NH2)Cl.
Journal of Physics-Condensed Matter, 2002, 14, 3129-3142
IF: 1.775

140. Bednarska-Bolek Beata, Jakubas Ryszard, Bator Grażyna , Baran Jan
Vibrational study of the structural phase transition in bis(pyrrolidinium)-chloride-hexachloroantimonate(V) by infrared spectroscopy.
Journal of Molecular Structure, 2002, 614, 151-157
IF: 1.122

141. Bednarska-Bolek Beata, Jakubas Ryszard, Bator Grażyna , Baran Jan
Vibrational study of the structural phase transitions in a new ferroelastic (C5H10NH2)SbCl6 crystal by infrared and Raman spectroscopies.
Polish Journal of Chemistry, 2002, 76, 385-394
IF: 0.528

142. Wojtaś Maciej, Bator Grażyna , Jakubas Ryszard, Zaleski J.
Crystal structure and dielectric properties of the [(CH3)2NH2]3Sb2(1-x)Bi2xCl9 (DMACAB) mixed crystals.
Journal of Physics-Condensed Matter, 2001, 13, 8831-8852
IF: 1.698

143. Bednarska-Bolek Beata, Jakubas Ryszard, Bator Grażyna , Pietraszko Adam
Ferroelastic phase transitions in triethylammonium and piperidinium chloroantimonate(V).
Ferroelectrics, 2001, 264, 145-150
IF: 0.471

144. Jóźków Jolanta, Jakubas Ryszard, Bator Grażyna , Pietraszko Adam
Ferroelectric properties of (C5H5NH)5BI2Br11.
Journal of Chemical Physics, 2001, 114, 7239-7246
IF: 3.147

145. Kuchta B., Carpentier P., Jakubas Ryszard, Zając Wojciech, Zieliński Piotr
Monte Carlo study of a compressible pseudospin model for (CH3NH3)5Bi2Cl11.
Physical Review B, 2001, 63, 1-6
IF: 3.07

146. Pietraszko Adam, Bednarska-Bolek Beata, Jakubas Ryszard, Zieliński Piotr
Phase transitions in the ferroelastic [C5H10NH2]SbCl6.
Journal of Physics-Condensed Matter, 2001, 13, 6471-6488
IF: 1.698

147. Bator Grażyna , Zeegers-Huyskens Th., Jakubas Ryszard, Zaleski J.
Structure and phase transitions in guanidinium halogenobismuthates(III).
Journal of Molecular Structure, 2001, 570, 61-74
IF: 0.907

148. Jóźków Jolanta, Medycki Wojciech, Zaleski J., Jakubas Ryszard, Bator Grażyna , Ciunik Zbigniew
Structure, phase transition and molecular motions in (C5H5NH)BiCl4.
Physical Chemistry Chemical Physics, 2001, 3, 3222-3228
IF: 1.787

149. Bator Grażyna , Jakubas Ryszard, Baran Jan
Vibrational study of the structural phase transitions in the (CH3ND3)3Sb2Br9 (d-MABA) crystals by infrared spectroscopy.
Vibrational Spectroscopy, 2001, 25, 101-113
IF: 1.167

150. Bator Grażyna , Jakubas Ryszard, Zaleski J., Mróz J.
Crystal structure and dielectric relaxation studies of the [N(CH3)3H]3Sb2(1-x)Bi2xCl9 mixed crystals.
Journal of Applied Physics, 2000, 88, 1015-1023
IF: 2.18

151. Jóźków Jolanta, Jakubas Ryszard, Bator Grażyna , Zaleski J., Decressain R.
Crystal structure, dielectric properties and molecular motions in (i-C4H9NH3)3Bi2Br9.
Journal of Physics and Chemistry of Solids, 2000, 61, 887-897
IF: 1.003

152. Zdanowska-Frączek M., Lewicki S., Jakubas Ryszard, Wąsicki J.
Effect of hydrostatic pressure on N(CH3)4+ cation motion in ferroelectric N(CH3)4H(Cl3CCOO)2.
Solid State Nuclear Magnetic Resonance, 2000, 16, 161-164
IF: 1.462

153. Jóźków Jolanta, Jakubas Ryszard, Baran Jan
Infrared investigation of the order-disorder phase transitions in (C5H5NH)6Bi4Cl18.
Journal of Molecular Structure, 2000, 555, 273-279
IF: 0.849

154. Czupiński Olaf, Bator Grażyna , Jakubas Ryszard
Infrared studies on structural phase transition in [N(CH3)4]3Bi2Br9.
Spectroscopy Letters, 2000, 33, 269-282
IF: 0.427

155. Grottel M., Pająk Z., Jakubas Ryszard
NMR study of cation motions in ferroic [C(NH2)3]3Bi2Br9.
Zeitschrift für Naturforschung Section A: A Journal of Physical Sciences, 2000, 55a, 570-574
IF: 0.638

156. Bednarska-Bolek Beata, Zaleski J., Bator Grażyna , Jakubas Ryszard
On structural phase transitions in piperidinium halogenoantimonates(III) and bismuthates(III): X-ray, calorimetric, dilatometric, dielectric and Raman studies.
Journal of Physics and Chemistry of Solids, 2000, 61, 1249-1261
IF: 1.003

157. Bednarska-Bolek Beata, Zaleski J., Jakubas Ryszard, Bator Grażyna
On structural phase transitions in the (C5H12N)2SbCl5 crystals.
Journal of Molecular Structure, 2000, 553, 175-186
IF: 0.849

158. Ratajczak Henryk, Debrus S., Jakubas Ryszard, Baran Jan
Second harmonic generation properties of [CH3NH3]5Bi2Br11 ferroelectric crystal.
Bulletin of the Polish Academy of Sciences. Chemistry, 2000, 48, 193-194
IF: 0.386

159. Zaleski J., Pawlaczyk Czesław, Jakubas Ryszard, Unruh H. G.
Structure and dynamic dielectric behaviour of ferroelectric [NH2(CH3)2]3Sb2Br9 (DMABA).
Journal of Physics-Condensed Matter, 2000, 12, 7509-7521
IF: 1.608

160. Bednarska-Bolek Beata, Pietraszko Adam, Jakubas Ryszard, Bator Grażyna , Kosturek Bogdan
Structure and phase transition in the (C5H10NH2)SbCl6·(C5H10NH2)Cl crystal.
Journal of Physics-Condensed Matter, 2000, 12, 1143-1159
IF: 1.608

161. Góśniowska Małgorzata, Ciunik Zbigniew, Bator Grażyna , Jakubas Ryszard, Baran Jan
Structure and phase transitions in tetramethylammonium tetrabromoindate(III) and tetraethylammonium tetrabromoindate(III) crystals.
Journal of Molecular Structure, 2000, 555, 243-255
IF: 0.849

162. Pawlaczyk Czesław, Jakubas Ryszard
Two relaxators dielectric behaviour of ammonium hydrogen bis-chloroacetate near the ferroelectric phase transition.
Solid State Communications, 2000, 113, 251-255
IF: 1.271

163. Mróz B., Andrews T., Clouter M. J., Jakubas Ryszard
Brillouin scattering studies of ferroic [NH2(CH3) 2] 3Sb2Cl9 (DMACA).
Journal of Physics-Condensed Matter, 1999, 11 , 905-912
IF: 1.639

164. Carpentier P., Lefebvre J., Jakubas Ryszard, Zając Wojciech, Zieliński Piotr
Lattice mediated interactions and ferroelectric anomalies in the crystal (CH3NH3) 5Bi2Cl11 (PMACB).
Phase Transitions, 1999, 67, 571-586
IF: 0.622

165. Medycki Wojciech, Jakubas Ryszard
NMR determination of dynamics parameters of CH3 groups in P(CH3) 4SbCl6.
Solid State Nuclear Magnetic Resonance, 1999, 15, 73-77
IF: 1.354

166. Grottel M., Jakubas Ryszard
NMR study of the pyridinium cation motions in (C5H5NH) 6Bi4Cl18.
Solid State Communications, 1999, 111, 29-32
IF: 1.428

167. Jakubas Ryszard, Janik J. A., Krawczyk Józef, Mayer J., Natkaniec I., Stanek T., Steinsvoll O., Zając Wojciech
Quasielastic neutron scattering (QNS) study of cation rotation in (CH3NH3)5Bi2Cl11, (CD3NH3)5 Bi2Cl11 and (CH3NH3)5Bi2Br11.
Physica B-Condensed Matter, 1999, 271, 309-314
IF: 0.725

168. Góśniowska Małgorzata, Ciunik Zbigniew, Bator Grażyna , Jakubas Ryszard
Structure and phase transitions in tetramethylammonium pentachloroindate(III) crystals.
Journal of Molecular Structure, 1999, 511-512, 345-354
IF: 0.868

169. Jakubas Ryszard, Zaleski J., Kosturek Bogdan, Bator Grażyna
Structure and phase transitions in the ferroelastic [C(NH2) 3] 3Bi2Br9 crystal.
Journal of Physics-Condensed Matter, 1999, 11, 4731-4746
IF: 1.639

170. Matyjasek K., Jakubas Ryszard
Temperature dependence of the domain switching of (CH3NH3) 5Bi2Br11 crystals.
Ferroelectrics, 1999, 227, 77-85
IF: 0.533

171. Baran Jan, Bator Grażyna , Drozd M. K., Ilczyszyn Maria M., Jakubas Ryszard, Marchewka Mariusz K., Ratajczak Henryk
Vibrational, DSC and dielectric studies of Cs1.5Li1.5H(SO4)2 crystal.
Journal of Molecular Structure, 1999, 511-512, 1-18
IF: 0.868

172. Zdanowska-Frączek M., Grottel M., Jakubas Ryszard
35Cl NQR and 1H NMR studies of molecular motions in guanidinium salt of chloroacetic acid.
Zeitschrift für Naturforschung Section A: A Journal of Physical Sciences, 1998, 53a, 484-487
IF: 0.594

173. Mróz B., Tuszyński J. A., Kiefte H., Clouter M. J., Jakubas Ryszard, Sept D.
Brilllouin-scattering studies of ferroelectric [CH3NH3]5Bi2Cl11.
Physical Review B, 1998, 58, 14261-14269
IF: 2.842

174. Mróz B., Tylczyński Z., Jakubas Ryszard, Kiefte H., Clouter M. J.
Brillouin scattering studies of ferroelectric (CH3NH3)5Bi2Br11.
Journal of the Korean Physical Society, 1998, 32, 610-612
IF: 0.441

175. Bator Grażyna , Jakubas Ryszard, Majerz Irena
Infrared studies on the structural phase transitions in (n-C3H7NH3)2SbBr5 and (n-C3H7NH3)3Sb2Cl9.
Polish Journal of Chemistry, 1998, 72, 314-24
IF: 0.508

176. Jakubas Ryszard, Janik J. A., Krawczyk Józef, Mayer J., Stanek T., Steinsvoll O.
Neutron quasielastic scattering by (CH3NH3)5Bi2Cl11.
Physica B-Condensed Matter, 1998, 241-243, 481-483
IF: 0.619

177. Jóźków Jolanta, Bator Grażyna , Jakubas Ryszard, Baran Jan
On structural phase transition in (i-C4H9NH3)3Bi2Br9: differential scanning calorimetry, dielectric and infrared studies.
Journal of Molecular Structure, 1998, 450, 247-257
IF: 0.807

178. Pawlaczyk Czesław, Jakubas Ryszard, Unruh H. G.
On the dynamic dielectric behaviour of (CH3NH3)3Sb2I9 (MAIA) single crystals.
Solid State Communications, 1998, 108, 247-250
IF: 1.297

179. Jakubas Ryszard, Jóźków Jolanta, Bator Grażyna
Phase transitions in [C5H5NH]6Bi4Cl18 crystals.
Journal of the Korean Physical Society, 1998, 32, 302-304
IF: 0.441

180. Ciąpała Paweł, Jakubas Ryszard, Bator Grażyna , Pietraszko Adam, Kosturek Bogdan
Phase transitions in ferroelastic [P(CH3)4]SbCl6 crystal.
Journal of Physics-Condensed Matter, 1998, 10, 5439-5447
IF: 1.645

181. Decressain R., Jakubas Ryszard, Bator Grażyna , Zaleski J., Lefebvre J., Kusz Joachim
Phase transitions in halogenoantimonates(V) crystals ; [N(CH3)4]SbCl6 and [N(C2H5)4]SbCl6.
Journal of Physics and Chemistry of Solids, 1998, 59, 1487-1498
IF: 0.909

182. Bator Grażyna , Jakubas Ryszard, Lefebvre J., Guinet Y.
Raman studies of ferroelectric phase transition in [NH2(CH3)]3Sb2Cl9(DMACA).
Vibrational Spectroscopy, 1998, 18, 203-210
IF: 1.014

183. Bator Grażyna , Baran Jan, Jakubas Ryszard, Karbowiak Mirosław
Raman studies of structural phase transition in Cs3Bi2Br9. .
Vibrational Spectroscopy, 1998, 16, 11-20
IF: 1.014

184. Jakubas Ryszard, Ciąpała Paweł, Pietraszko Adam, Zaleski J., Kusz Joachim
Structure and phase transitions in the [C(NH2)3]SbCl6 crystals.
Journal of Physics and Chemistry of Solids, 1998, 59, 1309-1319
IF: 0.909

185. Bator Grażyna , Baran Jan, Jakubas Ryszard, Sobczyk Lucjan
The structure and vibrational spectra of some ferroelectric and ferroelastic alkylammonium halogenoantimonates(III) and bismuthates(III). .
Journal of Molecular Structure, 1998, 450, 89-100
IF: 0.807

186. Tritt-Goc J., Piślewski N., Goc R., Piślewska H., Jakubas Ryszard
A nuclear magnetic resonance study of molecular motion in solid tris (n-propylammonium) enneachlorodiantimonate (III) (n-C3H7NH3)3SbCl9.
Solid State Nuclear Magnetic Resonance, 1997, 10, 73-78
IF: 1.37

187. Jakubas Ryszard, Bator Grażyna , Góśniowska Małgorzata, Ciunik Zbigniew, Baran Jan, Lefebvre J.
Crystal structure and phase transition of [(CH3)2NH2]GaCl4.
Journal of Physics and Chemistry of Solids, 1997, 58, 989-998
IF: 1.083

188. Bator Grażyna , Mróz J., Jakubas Ryszard
Dielectric and ferroelectric properties of the mixed crystals system (CH3NH3)5Bi2(1-x)Sb2xCl11.
Physica B-Condensed Matter, 1997, 240, 362-371
IF: 0.991

189. Baran Jan, Śledź M., Jakubas Ryszard, Bator Grażyna
Ferroelectric phase transition in deuterated glycinium phosphite crystals.
Physical Review B, 1997, 55, 169-172
IF: 2.88

190. Matyjasek K., Jakubas Ryszard
Influence of the internal bias field on the movement of the domain walls in (CH3NH3)5Bi2Cl11 crystals.
Ferroelectrics, 1997, 190, 25-30

191. Tritt-Goc J., Piślewski N., Goc R., Piślewska H., Jakubas Ryszard
Molecular motion in solid[(CH3)2CHNH3]2BiBr5 and [(CH3)2CHNH3]2SbBr5 as studied by proton nuclear magnetic resonance.
Molecular Physics, 1997, 92, 687-692
IF: 1.7

192. Ciąpała Paweł, Jakubas Ryszard, Bator Grażyna , Zaleski J., Pietraszko Adam, Drozd M. K., Baran Jan
On structural phase transition in n-butylammonium chloroantimonate(III) and chlorobismuthate(III) crystals: X-ray, differential scanning calorimetry, dilatometric and dielectric dispersion studies.
Journal of Physics-Condensed Matter, 1997, 9, 627-645
IF: 1.479

193. Jakubas Ryszard, Jóźków Jolanta, Bator Grażyna , Zaleski J., Baran Jan, François P.
Phase transitions in i-butylammonium halogenoantimonate(III) and bismuthate(III) crystals.
Journal of Molecular Structure, 1997, 436-437, 315-325
IF: 0.884

194. Carpentier P., Zieliński Piotr, Lefebvre J., Jakubas Ryszard
Phenomenological analysis of the phase transitions sequence in the ferroelectric crystal (CH3NH3)5Bi2Cl11 (PMACB).
Zeitschrift für Physik B: Condensed Matter, 1997, 102, 403-414
IF: 1.591

195. Zdanowska-Frączek M., Medycki Wojciech, Jakubas Ryszard, Piślewski N.
Proton magnetic resonance study of N(CH3)4+ cation motion in ferroelectric N(CH3)4H(Cl3CCOO)2.
Physica Status Solidi B-Basic Research, 1997, 199, 213-216
IF: 0.826

196. Sobczyk Lucjan, Jakubas Ryszard, Zaleski J.
Self-assembly of Sb(III) and Bi(III) halo-coordinated octahedra in salts of organic cations. Structure, properties and phase transitions.
Polish Journal of Chemistry, 1997, 71, 265-300
IF: 0.468

197. Mróz J., Jakubas Ryszard
Dielectric and ferroelectric properties of the mixed crystals system (C3NH3)5Bi2Cl11(1-x)Br11x.
Ferroelectrics, 1996, 189, 173-179

198. Baran Jan, Bator Grażyna , Jakubas Ryszard, Śledź M.
Dielectric dispersion and vibrational studies of a new ferroelectric, glycinium phosphite crystal.
Journal of Physics-Condensed Matter, 1996, 8, 10647-10658
IF: 1.487

199. Jakubas Ryszard, Bator Grażyna , Medycki Wojciech, Piślewski N., Decressain R., Lefebvre J., François P.
Dilatometric, dielectric and NMR studies of structural phase transitions of the (CH3NH3)3Bi2Cl9 (MACB) crystals.
Journal of Molecular Structure, 1996, 385, 145-151
IF: 0.867

200. Ciąpała Paweł, Bator Grażyna , Jakubas Ryszard, Baran Jan
Infrared studies on structural phase transitions in (n-C3H7NH3)2SbBr5.
Ferroelectrics, 1996, 185, 193-196

201. Piślewski N., Tritt-Goc J., Jakubas Ryszard
Molecular motions and phase transitions in solid tris(n-propylammonium) hexabromobismuthate(III).
Physica Status Solidi B-Basic Research, 1996, 193, 341-346
IF: 0.862

202. Mielcarek S., Biskupski P., Tylczyński Z., Mróz B., Jakubas Ryszard
Piezoelectric properties of MAPCB crystals.
Physica Status Solidi A-Applications and Materials Science, 1996, 158, 427-432
IF: 0.547

203. Medycki Wojciech, Piślewski N., Jakubas Ryszard
Proton NMR study of molecular dynamics and phase transitions in [NH2(CH3)2]3Sb2Cl9.
Ferroelectrics, 1996, 185, 205-208

204. Jakubas Ryszard, Ciąpała Paweł, Bator Grażyna , Ciunik Zbigniew, Decressain R., Lefebvre J., Baran Jan
Structural phase transitions in (n-C3H7NH3)2BiBr5 and (n-C3H7NH3)3BiBr6.
Physica B-Condensed Matter, 1996, 217, 67-77
IF: 0.864

205. Jakubas Ryszard, Bator Grażyna , Zaleski J., Pietraszko Adam, Decressain R.
The structure and phase transition of (CH3NH3)3Sb2(1-x)Bi2xCl9 mixed crystals.
Journal of Physics-Condensed Matter, 1996, 8, 367-381
IF: 1.487

206. Ciąpała Paweł, Zaleski J., Bator Grażyna , Jakubas Ryszard, Pietraszko Adam
The structure and phase transition of tris(n-propylammonium) enneachloro-diantimonate (III), (n-C3H7NH3)3Sb2Cl9.
Journal of Physics-Condensed Matter, 1996, 8, 1957-1970
IF: 1.487

207. Jakubas Ryszard, Bator Grażyna , Ciąpała Paweł, Zaleski J., Baran Jan, Lefebvre J.
Calorimetric, dielectric, infrared spectra and thermal expansion studies of structural phase transitions in [(CH3)2CHNH3]2MX5 (M=Sb, Bi; X=Cl, Br) crystals.
Journal of Physics-Condensed Matter, 1995, 7, 5335-5350
IF: 1.39

208. Orzechowski Kazimierz, Bator Grażyna , Jakubas Ryszard
Comparison studies of the influence of an electric field on permittivity close to ferroelectric-paraelectric phase transition in TGS, DMACA and DMABA crystals.
Ferroelectrics, 1995, 166, 139-148

209. Jakubas Ryszard, Bator Grażyna , Mróz J.
Dielectric and pyroelectric studies on [N(CH3)4]3Bi2X9 (X= Cl, Br).
Acta Physica Polonica A, 1995, 87, 663-669
IF: 0.364

210. Bator Grażyna , Jakubas Ryszard
Dielectric dispersion in ferroelectrics [NH2(CH3)2]3Sb2Cl9 and [NH2(CH3)2]3Sb2Br9.
Physica Status Solidi A-Applications and Materials Science, 1995, 147, 591-600
IF: 0.558

211. Zaleski J., Bator Grażyna , Jakubas Ryszard
Dielectric properties and characterisation of the superionic phase of [C(NH2)3]2SbCl5· [C(CH2)3]Cl (GHCA).
Zeitschrift für Naturforschung Section A: A Journal of Physical Sciences, 1995, 50a, 888-892
IF: 0.554

212. Zaleski J., Medycki Wojciech, Piślewski N., Jakubas Ryszard
DSC, dilatometric, dielectric and 1H NMR studies of phase transition and molecular motions in [N(C2H5)4]3M2Cl9 (M = Sb, Bi) crystals.
Physica Status Solidi B-Basic Research, 1995, 190, 199-210
IF: 0.583

213. Miniewicz Andrzej, Żuk W., Jakubas Ryszard
Electro-optic coefficients of ferroelectric PMACB and PMABB crystals.
Ferroelectrics, 1995, 165, 241-248

214. Mróz J., Pykacz H., Jakubas Ryszard
Influence of defects on dielectric properties of (CH3NH3)5Bi2X11 (X = Cl, Br) crystals.
Acta Physica Polonica A, 1995, 88, 369-374
IF: 0.364

215. Bator Grażyna , Jakubas Ryszard, Baran Jan, Ratajczak Henryk
Infrared studies of structural phase transitions in (NH3CH3)3Sb2I9.
Vibrational Spectroscopy, 1995, 8, 425-433
IF: 1.138

216. Piślewski N., Tritt-Goc J., Goc R., Jakubas Ryszard
Molecular motions in solid [N(CH3)2H2]3Sb2I9 studied by proton nuclear magnetic resonance spectroscopy.
Solid State Nuclear Magnetic Resonance, 1995, 4, 101-104
IF: 2.143

217. Decressain R., Jakubas Ryszard, Lefebvre J.
NMR and dilatometric studies on (CH3NH3)3Sb2Cl9 crystals.
Physica Status Solidi A-Applications and Materials Science, 1995, 147, 73-78
IF: 0.558

218. Piślewski N., Tritt-Goc J., Jakubas Ryszard
Nuclear magnetic resonance proton dynamics study of [N(CH3)2H2]3Bi2I9 at low temperature.
Solid State Nuclear Magnetic Resonance, 1995, 4, 323-325
IF: 2.143

219. Matyjasek K., Jakubas Ryszard
Nucleation of domains in (CH3NH3)5Bi2Br11 crystals.
Ferroelectrics, 1995, 172, 201-205

220. Jakubas Ryszard, Mróz J., François P., Lefebvre J.
Pyroelectric and dilatometric studies on [NH2(CH3)2]3Sb2X9 (X = Cl, Br).
Ferroelectrics, 1995, 173, 221-231

221. Carpentier P., Lefebvre J., Jakubas Ryszard
Structure of pentakis (methylammonium) undecachlorodibismuthate(III), [(NH3(CH3)]5Bi2Cl11 at 130 K and mechanism of the phase transitions.
Acta Crystallographica Section B: Structural Science Crystal Engineering and Materials, 1995, B51, 167-174
IF: 1.339

222. Zaleski J., Medycki Wojciech, Piślewski N., Jakubas Ryszard
1H NMR, DSC, dielectric and dilatometric studies of phase transitions and molecular dynamics in N(C2H5)4SbCl4.
Physica Status Solidi A-Applications and Materials Science, 1994, 144, 81-89
IF: 0.596

223. Jakubas Ryszard, Bator Grażyna , Sobczyk Lucjan, Mróz J.
Dielectric and pyroelectric properties of (CH3NH3)3Me2Br9 (Me= Sb,Bi) crystals in the ferroelectric phase transition regions.
Ferroelectrics, 1994, 158, 43-48

224. Zaleski J., Jakubas Ryszard, Bator Grażyna , Baran Jan
Dielectric dispersion, dilatometric and infrared studies of tris(guanidinium) enneachlorodiantimonate(III) ([C(HN2)3]3Sb2Cl9).
Journal of Molecular Structure, 1994, 325, 95-103
IF: 0.837

225. Matyjasek K., Jakubas Ryszard
Dynamics of domains in (CH3NH3)5Bi2Br11 crystals.
Acta Physica Polonica A, 1994, A85, 835-841
IF: 0.346

226. Mróz J., Jakubas Ryszard
Ferroelectric and ferroelastic phase transitions in (CH3NH3)3Sb2Br9 crystals.
Ferroelectrics. Letters Sections, 1994, 17, 73-78
IF: 0.318

227. Bator Grażyna , Jakubas Ryszard, Baran Jan, Sobczyk Lucjan
Infrared studies of ferroelectric phase transition in [NH2(CH3)2]3Sb2Br9.
Ferroelectrics, 1994, 152, 267-272

228. Bator Grażyna , Jakubas Ryszard, Baran Jan, Ratajczak Henryk
Infrared studies of structural phase transitions in (CH3NH3)3Bi2I9 (MAIB).
Journal of Molecular Structure, 1994, 325, 45-51
IF: 0.837

229. Bator Grażyna , Baran Jan, Jakubas Ryszard, Ratajczak Henryk
Infrared studies on structural phase transitions in [NH2(CH3)2]3Sb2Br9 and [NH2(CH3)2]3Sb2I9.
Vibrational Spectroscopy, 1994, 6, 193-204
IF: 1.098

230. Jakubas Ryszard, Bator Grażyna , Sobczyk Lucjan, Zaleski J., Decressain R., Lefebvre J.
Molecular dynamics and phase transitions in tris(dimethylammonium) enneaiododibismuthate(III) as studied by DSC, dilatometric, IR, 1H NMR and dielectric methods.
Phase Transitions, 1994, 46, 258-267
IF: 0.425

231. Piślewski N., Tritt-Goc J., Jakubas Ryszard
Molecular motions and phase transitions in solid bis-n-propylammonium pentabromoantimonate.
Solid State Nuclear Magnetic Resonance, 1994, 3, 293-297

232. Decressain R., Cochon E., Lefebvre J., Meurer B., Jakubas Ryszard
Molecular motions in solid (CH3NH3)5Bi2Cl11 as studied by proton nuclear magnetic resonance.
Journal of Physics and Chemistry of Solids, 1994, 55, 139-144
IF: 1.35

233. Przesławski J., Kosturek Bogdan, Jakubas Ryszard, Lingard R., Arzt S., Fitzmaurice A.
Optical properties of PMACB and PMABB crystals.
Ferroelectrics, 1994, 152, 367-372

234. Miniewicz Andrzej, Jakubas Ryszard, Ecolivet C., Girard A.
Raman scattering in ferroelectric (CH3NH3)3Bi2Br9 single crystals.
Journal of Raman Spectroscopy, 1994, 25, 371-375
IF: 0.957

235. Ramos S., Del Cerro J., Pawłowski A., Jakubas Ryszard
Specific heat and pyroelectric coefficient behaviour of (CH3NH3)5Bi2Cl11 ferroelectric crystal.
Ferroelectrics, 1994, 159, 173-178

236. Zaleski J., Jakubas Ryszard
The dielectric and dilatometric single crystal studies of phase transitions in a new member of family of halogenoantimonates(III) [C(NH2)3]2SbCl5·[C(NH2)3]Cl.
Zeitschrift für Naturforschung Section A: A Journal of Physical Sciences, 1994, 49A, 709-713
IF: 0.63

237. Jakubas Ryszard, François P., Lefebvre J.
Thermal expansion of (CH3NH3)5Bi2X11 (X = Cl, Br ) crystals in the temperature range from 80 to 300 K.
Acta Physica Polonica A, 1994, A85, 579-583
IF: 0.346

238. Pavel M., Fousková A., Jakubas Ryszard, Miniewicz Andrzej
Brillouin scattering study of elastic properties in ferroelectric (CH3NH3)5Bi2Br11 crystal.
Ferroelectrics, 1993, 146, 37-43

239. Jakubas Ryszard, Bator Grażyna , Mróz J.
Dielectric and pyroelectric properties of (CH3NH3)3Bi2Br9 crystals in the ferroelectric phase transition region.
Ferroelectrics, 1993, 146, 65-71

240. Bator Grażyna , Jakubas Ryszard, Sobczyk Lucjan, Mróz J.
Dielectric and pyroelectric properties of [N(CH3)3H]3Sb2Cl9 in the low temperature region.
Ferroelectrics, 1993, 141, 177-187

241. Marqueton Y., Miniewicz Andrzej, Jakubas Ryszard
Far-infrared reflectivity spectra of two ferroelectric crystals (CH3NH3)5Bi2Cl11 and (CH3NH3)5Bi2Br11.
Ferroelectrics, 1993, 145, 109-118

242. Jakubas Ryszard, Galewski Zbigniew, Matuszewski J., Lefebvre J.
Investigations of structural phase transitions in [N(CH3)4]3Bi2X9 (X = Cl, Br) and [N(CH3)2H2]3Sb2I9.
Physica Status Solidi A-Applications and Materials Science, 1993, 136, 19-23
IF: 0.573

243. Medycki Wojciech, Piślewski N., Jakubas Ryszard
Molecular dynamics of the methylammonium cation in [CH3NH3]5Bi2Cl11.
Solid State Nuclear Magnetic Resonance, 1993, 2, 197-200

244. Medycki Wojciech, Jakubas Ryszard, Piślewski N., Lefebvre J.
NMR and dilatometric studies on [N(CH3)4]3M2X9 (M=Sb, Bi; X=Cl, Br).
Zeitschrift für Naturforschung Section A: A Journal of Physical Sciences, 1993, 48A, 748-752
IF: 0.582

245. Pykacz H., Mróz J., Jakubas Ryszard
Phase transitions in (CH3NH3)5Bi2X11 (X = Cl, Br) crystals.
Acta Physica Polonica A, 1993, 84, 1085-1091
IF: 0.333

246. Jakubas Ryszard, Bator Grażyna , Foulon M., Lefebvre J., Matuszewski J.
Structural phase transitions in (n-C3H7NH3)2SbBr5.
Zeitschrift für Naturforschung Section A: A Journal of Physical Sciences, 1993, 48A, 529-534
IF: 0.582

247. Jakubas Ryszard, Bator Grażyna , Baran Jan
Vibrational study of the structural phase transitions for the (CH3NH3)3Sb2Br9 (MABA) and (CH3NH3)3Bi2Br9 (MABB) crystals by infrared spectroscopy.
Journal of Physics and Chemistry of Solids, 1993, 54, 1065-1072
IF: 1.473

248. Urban S., Zając Wojciech, Jakubas Ryszard, Carlile C. J., Gabryś Beata
A quasielastic neutron scattering study of molecular reorientation in [(CH3)3NH]3[Sb2Cl9](TMACA).
Physica B-Condensed Matter, 1992, 180-181, 1050-1052
IF: 0.939

249. Miniewicz Andrzej, Sworakowski J., Bertault M., Jakubas Ryszard
Calorimetric study of the phase transitions in tris(dimethylammonium)nonabromodiantimonate(III) and tris(dimethylammonium)nonachlorodiantimonate(III).
Ferroelectrics, 1992, 125, 39-44
IF: 0.773

250. Pawełczak K., Jakubas Ryszard, Planta Klaus, Bruch Christian, Unruh H. G.
Dielectric dispersions in pentakis methyl ammonium bismuthate single crystals: II. (CH3NH3)5Bi2Cl11.
Journal of Physics-Condensed Matter, 1992, 4, 2695-2700
IF: 1.627

251. Pawlaczyk Czesław, Jakubas Ryszard, Planta Klaus, Bruch Christian, Stephan J., Unruh H. G.
Dynamic dielectric behaviour of (CH3NH3)5Bi2X11 (X:Br, Cl) single crystals.
Ferroelectrics, 1992, 126, 145-150
IF: 0.773

252. Mróz J., Poprawski R., Jakubas Ryszard
Effect of hydrostatic pressure on the ferroelectric phase transition in (CH3NH3)5Bi2Cl11crystals.
Polish Journal of Chemistry, 1992, 66, 827-833

253. Marqueton Y., Miniewicz Andrzej, Jakubas Ryszard
Far-infrared reflectivity and Raman study in the ferroelectric-ferroelastic crystal of tris(dimethylammonium) nonabromodiantimonate.
Journal of Raman Spectroscopy, 1992, 23, 347-356
IF: 1.043

254. Bator Grażyna , Jakubas Ryszard, Majerz Irena, Malarski Zbigniew
Infrared studies of structural phase transitions in [NH2(CH3)2]3SbBr6.
Journal of Molecular Structure, 1992, 274, 1-8
IF: 0.943

255. Przesławski J., Kosturek Bogdan, Jakubas Ryszard
Linear birefringence changes in DMACA and TMACA crystals in the phase transitions regions.
Ferroelectrics, 1992, 126, 91-96
IF: 0.773

256. Kozioł P., Furukawa Yoshihiro, Nakamura Daiyu, Jakubas Ryszard
Motions of methylammonium ions in (CH3NH3)3Sb2I9 crystals studied by 1H NMR.
Bulletin of the Chemical Society of Japan, 1992, 65, 1707-1709
IF: 0.876

257. Jakubas Ryszard, Decressain R., Lefebvre J.
NMR and dilatomeric studies of the structural phase transitions of (CH3NH3)3Sb2I9 and (CH3NH3)3Bi2I9 crystal.
Journal of Physics and Chemistry of Solids, 1992, 53, 755-759
IF: 1.255

258. Krzewska Urszula, Jakubas Ryszard, Dacko S., Czapla Zbigniew, Waśkowska A.
Phase transitions in (CH3)2CHNH3CdCl3 crystal.
Acta Physica Polonica A, 1992, 81, 379-384
IF: 0.222

259. Połomska M., Jakubas Ryszard
Polarization reversal studies of ferroelectric [CH3)3NH]3Sb2Cl9 single crystals.
Ferroelectrics, 1992, 126, 359-363
IF: 0.773

260. Orzechowski Kazimierz, Bator Grażyna , Jakubas Ryszard
Preliminary studies of the influence of an electric field on permittivity close to the ferroelectric-paraelectric phase transition in (CH3NH3)5Bi2Br11 crystal.
Chemical Physics Letters, 1992, 199, 325-328
IF: 2.686

261. Carpentier P., Lefebvre J., Jakubas Ryszard
Raman studies of the ferroelectric phase transitions in (CH3NH3)5Bi2Cl11 (MAPCB): I. The Internal vibrations of the methylammonium cation.
Journal of Physics-Condensed Matter, 1992, 4, 2985-2999
IF: 1.627

262. Carpentier P., Lefebvre J., Jakubas Ryszard
Raman studies of the internal modes in ferroelectric crystal (CH3NH3)5Bi2Cl11 (MAPCB).
Ferroelectrics, 1992, 125, 401-406
IF: 0.773

263. Pawłowski A., Jakubas Ryszard, Ramos S., Del Cerro J.
Specific heat behaviour of (CH3NH3)5Bi2Br11 near its ferroelectric transition.
Ferroelectrics, 1992, 125, 29-32
IF: 0.773

264. Pykacz H., Mróz J., Jakubas Ryszard
The internal bias field of ferroelectric (CH3NH3)5Bi2Br11.
Acta Physica Polonica A, 1992, 81, 667-673
IF: 0.222

265. Pykacz H., Jakubas Ryszard
Dilatometric study of the phase transition in (CH3NH3)5Bi2Cl11.
Acta Physica Polonica A, 1991, 79, 695-697
IF: 0.343

266. Mróz J., Jakubas Ryszard
Investigation of phase transitions in (CH3NH3)5Bi2Cl11 crystals by pyroelectric method.
Ferroelectrics, 1991, 118, 29-33
IF: 0.463

267. Miniewicz Andrzej, Jakubas Ryszard
Linear electro-optic effect in a ferroelectric crystal of (CH3NH3)5Bi2Cl11 (PMACB).
Journal of Molecular Electronics, 1991, 7, 55-62
IF: 1.35

268. Miniewicz Andrzej, Jakubas Ryszard, Zaleski J.
Measurements of pyroelectric properties in [(C2H5)4N]3Sb2Br9.
Ferroelectrics, 1991, 118, 23-28
IF: 0.463

269. Baran Jan, Ilczyszyn Maria M., Jakubas Ryszard, Ratajczak Henryk
Polarized infrared spectra of ammonium hydrogen bis-chloroacetate in the paraelectric phase.
Journal of Molecular Structure, 1991, 246, 1-12
IF: 0.942

270. Miniewicz Andrzej, Jakubas Ryszard
Pyroelectric properties of a novel uniaxial ferroelectric crystal (CH3NH3)5Bi2Br11.
Ferroelectrics, 1991, 115, 119-127
IF: 0.463

271. Miniewicz Andrzej, Lefebvre J., Jakubas Ryszard
Raman studies of structural phase transition in [NH2(CH3)2]3Sb2Cl9 (DMACA).
Journal of Raman Spectroscopy, 1991, 22, 435-443
IF: 0.96

272. Lefebvre J., Carpentier P., Jakubas Ryszard
Structures and phase transition in the ferroelectric crystal of pentakis(methylammonium) undecachlorodibismuthate(III): {NH3(CH3)]5Bi2Cl11.
Acta Crystallographica Section B: Structural Science Crystal Engineering and Materials, 1991, B47, 228-234
IF: 1.514

273. Bator Grażyna , Jakubas Ryszard, Malarski Zbigniew
Study of the structural phase transitions of (CH3NH3)3Sb2Cl9 (MACA) and (CH3NH3)3Bi2Cl9 (MACB) by infrared spectroscopy.
Journal of Molecular Structure, 1991, 246, 193-202
IF: 0.942

274. Przesławski J., Kosturek Bogdan, Jakubas Ryszard
Temperaturnye izmeneniâ linejnogo dvuprelomleniâ v kristallah MACB.
Izvestiâ Akademii Nauk SSSR. Seriâ Fiziečskaâ, 1991, T. 55, 510-514
IF: 0.166

275. Lefebvre J., Carpentier P., Jakubas Ryszard, Sobczyk Lucjan
The para-ferroelectric phase transitions in (NH3(CH3)5Bi2Cl11. (P.M.A.C.B.).
Phase Transitions, 1991, 33, 31-41
IF: 0.721

276. Cach R., Jakubas Ryszard
Determination of Landau free-energy parameters by dielectric measurements in (CH3NH3)5Bi2Cl11 crystals.
Ferroelectrics, 1990, 108, 121-126
IF: 0.463

277. Pawlaczyk Czesław, Motsch H., Jakubas Ryszard, Unruh H. G.
Dielectric behaviour of the new ferroelectric (CH3NH3)5Bi2Br11 in the microwave region.
Ferroelectrics, 1990, 108, 127-132
IF: 0.463

278. Mróz J., Poprawski R., Kolarz A., Jakubas Ryszard
Dielectric properties of (CH3NH3)5Bi2Br11 crystals under hydrostatic pressure.
Solid State Communications, 1990, 76, 821-824
IF: 1.764

279. Połomska M., Jakubas Ryszard
Dynamics of ferroelectric domains in (CH3NH3)5Bi2Br11 studied by liquid crystal decoration technique.
Ferroelectrics, 1990, 106, 57-62
IF: 0.463

280. Kozioł P., Jakubas Ryszard
Effect of hydrostatic pressure on the phase transitions in (CH3NH3)3 Sb2Br9.
Physica Status Solidi A-Applications and Materials Science, 1990, 120, 93-94
IF: 0.414

281. Kosturek Bogdan, Przesławski J., Jakubas Ryszard
Ferroelastic twins and linear birefringence in DMACA crystal.
Solid State Communications, 1990, 75, 673-676
IF: 1.764

282. Miniewicz Andrzej, Jakubas Ryszard, Ecolivet C.
Ferroelasticity of [NH2(CH3)2]3Sb2Br9 (DMABA).
Ferroelectrics, 1990, 106, 249-254
IF: 0.463

283. Mróz J., Jakubas Ryszard
Ferroelectric phase transitions of (CH3NH3)5Bi2Cl11.
Ferroelectrics. Letters Sections, 1990, 11, 53-56
IF: 0.542

284. Miniewicz Andrzej, Jakubas Ryszard
Linear electro-optic effect in a ferroelectric crystal: (CH3NH3)5Bi2Br11.
Journal of Molecular Electronics, 1990, 6, 113-117
IF: 1.35

285. Medycki Wojciech, Zimpel Z., Piślewski N., Jakubas Ryszard
Molecular dynamics in [N(CH3)4]3Sb2Cl9.
Solid State Communications, 1990, 76, 869-871
IF: 1.764

286. Miniewicz Andrzej, Jakubas Ryszard
On the nature of the low temperature phase transition in (CH3NH3)3Bi2I9 studied by pyroelectric method.
Ferroelectrics, 1990, 110, 261-269
IF: 0.463

287. Bator Grażyna , Jakubas Ryszard, Malarski Zbigniew, Galewski Zbigniew, Matuszewski J., Miniewicz Andrzej
Phase transition in solid 2,2,4,4-tetramethyl-pentan-3-ol (TMP).
Journal of Molecular Structure, 1990, 240, 39-46
IF: 0.942

288. Jakubas Ryszard, Zaleski J., Sobczyk Lucjan
Phase transitions in (CH3NH3)3Bi2I9 (MAIB).
Ferroelectrics, 1990, 108, 109-114
IF: 0.463

289. Jakubas Ryszard, Sobczyk Lucjan
Phase transitions in alkylammonium halogenoantimonates and bismuthates.
Phase Transitions, 1990, 20, 163-193
IF: 0.721

290. Galewski Zbigniew, Jakubas Ryszard, Sobczyk Lucjan
Phase transitions in dimethylammonium halogenoantimonates (III).
Acta Physica Polonica A, 1990, A78, 645-650
IF: 0.343

291. Zaleski J., Jakubas Ryszard, Sobczyk Lucjan, Mróz J.
Properties and structural phase transitions of (CH3NH3)3Sb2I9.
Ferroelectrics, 1990, 103, 83-90
IF: 0.463

292. Mróz J., Czapla Zbigniew, Jakubas Ryszard
Pyroelectric properties, domain structure and ferroelectricity of (CH3NH3)3Bi2Br9 single crystals.
Acta Physica Polonica A, 1990, A77, 501-506
IF: 0.343

293. Miniewicz Andrzej, Lefebvre J., Jakubas Ryszard
Raman scattering in ferroelectric [NH2(CH3)2]3Sb2Cl9 (DMACA).
Ferroelectrics, 1990, 107, 183-188
IF: 0.463

294. Jakubas Ryszard, Lefebvre J.
Structure and mechanism of ferroelectric phase transitions in (CH3NH3)5Bi2Cl11 and (CH3NH3)5Bi2Br11.
Ferroelectrics, 1990, 108, 115-120
IF: 0.463

295. Matuszewski J., Jakubas Ryszard, Sobczyk Lucjan, Głowiak Tadeusz
Structure of pentakis(methylammonium) undecabromodibismuthate.
Acta Crystallographica Section C: Crystal Structure Communications, 1990, C46, 1385-1388
IF: 0.459

296. Zaleski J., Jakubas Ryszard, Sobczyk Lucjan
Succesive phase transitions and ferroelasticity of [(CH3)2NH2]3Bi2I9.
Phase Transitions, 1990, 27, 25-36
IF: 0.721

297. Jakubas Ryszard
A new ferroelectric compound: (CH3NH3)5Bi2Br11.
Solid State Communications, 1989, 69, 267-269
IF: 2.52

298. Jakubas Ryszard, Sobczyk Lucjan, Lefebvre J.
A new ferroelectric crystal: (CH3NH3)5Bi2Cl11.
Ferroelectrics, 1989, 100, 143-149
IF: 1.62

299. Ecolivet C., Miniewicz Andrzej, Jakubas Ryszard
Brillouin scattering studies of ferroelectric tris(dimethylammonium)nonabromodiantimonate(III).
Solid State Communications, 1989, 71, 143-147
IF: 2.52

300. Zaleski J., Głowiak Tadeusz, Jakubas Ryszard, Sobczyk Lucjan
Crystal structure and phase transitions of [(C2H5)4N]6Bi8Cl30.
Journal of Physics and Chemistry of Solids, 1989, 50, 1265-1269
IF: 0.916

301. Jakubas Ryszard, Pykacz H.
Dilatometric study of the ferroelectric phase transition in (CH3NH3)5Bi2Br11.
Physica Status Solidi A-Applications and Materials Science, 1989, 115, 17-18
IF: 0.596

302. Kozioł P., Jakubas Ryszard
Effect of hydrostatic pressure on the phase transitions in (CH3NH3)3Bi2Br9.
Solid State Communications, 1989, 72, 143-145
IF: 2.52

303. Połomska M., Szcześniak L., Jakubas Ryszard, Meyer K.-P., Blumtritt H.
Ferroelectric domain structure of (CH3NH3)5Bi2Br11 single crystals.
Ferroelectrics. Letters Sections, 1989, 10, 107-112
IF: 1.141

304. Mróz J., Jakubas Ryszard
Ferroelectricity in (CH3NH3)5Bi2Br11 crystals.
Solid State Communications, 1989, 72, 813-816
IF: 2.52

305. Piekara-Sady L., Jakubas Ryszard, Piślewski N.
Molecular motions in a novel ferroelectric crystal (CH3NH3)5Bi2Br11 studied by NMR.
Solid State Communications, 1989, 72, 585-587
IF: 2.52

306. Kosturek Bogdan, Jakubas Ryszard
Optical birefringence of (CH3NH3)5Bi2Br11.
Physica Status Solidi A-Applications and Materials Science, 1989, 114, 111-113
IF: 0.596

307. Jakubas Ryszard, Tomaszewski P. E., Sobczyk Lucjan
Phase transition in (CH3NH3)3Bi2Cl9.
Physica Status Solidi A-Applications and Materials Science, 1989, 111, 27-29
IF: 0.596

308. Jakubas Ryszard, Miniewicz Andrzej, Bertault M., Sworakowski J., Collet A.
Phase transitions in ferroelectric nonachlorodiantimonate [(CH3)3NH]3Sb2Cl9 studied by calorimetric and dielectric methods.
Journal de Physique, 1989, 50, 1483-1491
IF: 0.924

309. Miniewicz Andrzej, Jakubas Ryszard, Ecolivet C., Girard A.
Raman scattering in ferroelectric [NH(CH3)3]3Sb2Cl9 single crystals.
Journal of Raman Spectroscopy, 1989, 20, 381-389
IF: 0.973

310. Zaleski J., Jakubas Ryszard, Galewski Zbigniew, Sobczyk Lucjan
Structural phase transitions in [(C2H5)4N]3Sb2Br9 and [(C2H5)4N]3Bi2Br9.
Zeitschrift für Naturforschung Section A: A Journal of Physical Sciences, 1989, 44, 1102-1106
IF: 0.899

311. Jakubas Ryszard, Sobczyk Lucjan
Structure and properties of a novel ferroelectric crystal: (CH3NH3)5Bi2Br11.
Ferroelectrics, 1989, 92, 365-368
IF: 1.62

312. Miniewicz Andrzej, Sworakowski J., Jakubas Ryszard, Bertault M., Ecolivet C.
Studies of phase transitions in new ferroelectric crystal [NH(CH3)3]3Sb2Cl9.
Ferroelectrics, 1989, 94, 323-328
IF: 1.62