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Title Prof.
Name Lucjan Sobczyk
Sex Male
Position emeritus professor
Phone +48 71 375 7237
E-mail lucjan.sobczyk@chem.uni.wroc.pl
Room 215 (budynek B)
Unit ZB-09 Structure and Molecular Interactions

Scientific career

M.Sc. 1951, Ph.D. 1954, D.Sc. 1962, Prof. 1969

Publications list




 
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Summaric impact factor: 207.44

Number of publications: 140

1. Sobczyk L., Obrzud M. H., Filarowski A.
H/D isotope effects in hydrogen bonded systems.
Molecules, 2013, 18, 4467-4476.
ImpF: 2.43

2. Sobczyk L., Pawlukojć A., Grech E., Huczyński A., Brzeziński B.
Extremely different structures and vibrational spectra of tetramethylpyrazine nitrate dihydrate in solid and solutions.
J. Mol. Struct., 2013, 1037, 264-270.
ImpF: 1.55

3. Bator G., Sobczyk L., Sawka-Dobrowolska W., Wuttke J., Pawlukojć A., Grech E., Nowicka-Scheibe J.
Structural, spectroscopic and theoretical studies on 3,4,7,8-tetramethyl-1,10-phenantroline complex with picric acid.
Chem. Phys., 2013, 410, 55-65.
ImpF: 1.96

4. Bator G., Sawka-Dobrowolska W., Sobczyk L., Owczarek M. T., Pawlukojć A., Grech E., Nowicka-Scheibe J.
Hydrogen bonded NHO chains formed by chloranilic acid (CLA) with 4,4'-di-t-butyl-2,2'-bipyridyl(dtBBP) in the solid state.
Chem. Phys., 2012, 392, 114-121.
ImpF: 1.96

5. Majewska P., Rospenk M., Petrus R., Sobczyk L., Czarnik-Matusewicz B., Dąbrowski R.
Study of packing of 4'-butyl-4-isothiocyanatotolane by X-ray diffraction and infrared spectra in polarized light.
Chem. Phys. Lett., 2012, 535, 56-62.
ImpF: 2.15

6. Majewska P., Rospenk M., Czarnik-Matusewicz B., Sobczyk L.
Correlation between structure and shape of the polarized infrared absorption spectra of 4-chloro-2'-hydroxy-4'-alkoxyazobenzenes.
J. Phys. Chem. B., 2011, 115, 2728-2736.
ImpF: 3.7

7. Pawlukojć A., Sawka-Dobrowolska W., Bator G., Sobczyk L., Grech E., Nowicka-Scheibe J.
The structure and vibrational spectra of the 2,5-dimethylpyrazine (2,5-DMP) 1: 1 adduct with 2,5-dichloro-3,6-dihydroxy-p-benzoquinone (CLA).
Chem. Phys., 2011, 380, 34-39.
ImpF: 1.9

8. Bator G., Sawka-Dobrowolska W., Sobczyk L., Grech E., Nowicka-Scheibe J., Pawlukojć A., Wuttke J., Baran J., Owczarek M. T.
4,4'-, 5,5'-, and 6,6'-dimethyl-2,2'-bipyridyls: the structures, phase transitions, vibrations, and methyl group tunneling of their complexes with chloranilic acid.
J. Chem. Phys., 2011, 135, 044509, 1-11.
ImpF: 3.33

9. Sawka-Dobrowolska W., Bator G., Sobczyk L., Grech E., Nowicka-Scheibe J., Pawlukojć A., Wuttke J.
The (2:1) complex of picric acid with tetramethylpyrazine: the structure, IR spectra and tunnel splitting of methyl groups.
J. Mol. Struct., 2010, 975, 298-302.
ImpF: 1.6

10. Sobczyk L.
The specificity of the [NHN]+ hydrogen bonds in protonated naphthalene proton spongs.
J. Mol. Struct., 2010, 972, 59-63.
ImpF: 1.6

11. Nowicka-Scheibe J., Grech E., Sawka-Dobrowolska W., Bator G., Pawlukojć A., Sobczyk L.
Structure and vibrational spectra of squaric acid complexes with 4,4'- and 5,5'-dimethyl-2,2'-bipyridine.
J. Mol. Struct., 2010, 976, 30-35.
ImpF: 1.6

12. Filarowski A., Koll A., Sobczyk L.
Intramolecular hydrogen bonding in o-hydroxy aryl Schiff bases.
Curr. Org. Chem., 2009, 13, 172-193.
ImpF: 2.88

13. Majewska P., Rospenk M., Czarnik-Matusewicz B., Sobczyk L.
The role of H-bonded chelate rings in the organization of liquid crystalline 2-hydroxyazobenzenes.
Chem. Phys. Lett., 2009, 473, 75-80.
ImpF: 2.29

14. Filarowski A., Koll A., Sobczyk L.
Vibrational spectra of o-hydroxyphenyl Schiff bases and related compounds.
Curr. Org. Chem., 2009, 13, 287-298.
ImpF: 2.88

15. Majewska P., Rospenk M., Sobczyk L.
2'-hydroxybenzylideneanilines and 2-hydroxyazobenzenes. The role of intramolecular O–H···N resonance assisted hydrogen bonds.
Pol. J. Chem., 2009, 83, 709-721.
ImpF: 0.52

16. Sobczyk L., Prager M., Sawka-Dobrowolska W., Bator G., Pawlukojć A., Grech E., Van Eijck L., Ivanov A., Rols S., Wuttke J., Unruh T.
The structure of diaminodurene and the dynamics of the methyl groups.
J. Chem. Phys., 2009, 130, 164519, 1-9.
ImpF: 3.09

17. Sobczyk L., Bator G., Sawka-Dobrowolska W., Nowicka-Scheibe J., Grech E., Pawlukojć A.
Assembly of protonated tetramethylpyrazine (TMP) in triiodide. Vibrational spectra and DFT simulations.
Pol. J. Chem., 2009, 83, 957-963.
ImpF: 0.52

18. Krawczyk J., Nowina-Konopka M., Janik J. A., Steinsvoll O., Bator G., Pawlukojć A., Grech E., Nowicka-Scheibe J., Sobczyk L.
Quasi-elastic neutron scattering (QENS) studies on the 1:1 tetramethylpyrazine-1,2,4,5-tetracyanobenzene complex.
Collect. Czech. Chem. Commun., 2009, 74, 73-84.
ImpF: 0.86

19. Degtyarev A. V., Ryabtsova O. V., Pozharskii A. F., Ozeryanskii V. A., Starikova Z. A., Sobczyk L., Filarowski A.
2,7-disubstituted proton sponges as borderline systems for investigating barrier-free intramolecular hydrogen bonds. Protonated 2,7-bis(trimethylsilyl)- and 2,7-di(hydroxymethyl)-1,8-bis(dimethylamino)naphthalenes.
Tetrahedron, 2008, 64, 6209-6214.
ImpF: 2.9

20. Majewska P., Rospenk M., Czarnik-Matusewicz B., Kochel A., Sobczyk L., Dąbrowski R.
Structure and polarized IR spectra of 4-isothiocyanatophenyl 4-heptylbenzoate (7TPB).
Chem. Phys., 2008, 354, 186-195.
ImpF: 1.96

21. Pawlukojć A., Sobczyk L., Prager M., Bator G., Grech E., Nowicka-Scheibe J.
DFT calculations of 2,6-dimethylpyrazine (26DMP) and its complex with chloranilic acid (CLA): comparison to INS, IR and Raman vibration spectra.
J. Mol. Struct., 2008, 892, 261-267.
ImpF: 1.59

22. Pawlukojć A., Prager M., Sawka-Dobrowolska W., Bator G., Sobczyk L., Ivanov A., Rois S., Grech E., Nowicka-Scheibe J., Unruh T.
The structure, methyl rotation reflected in inelastic and quasielastic neutron scattering and vibrational spectra of 1,2,3,5-tetramethoxybenzene and its 2:1 complex with 1,2,4,5-tetracyanobenzene.
J. Chem. Phys., 2008, 129, 154506, 1-12.
ImpF: 3.15

23. Nowicka-Scheibe J., Grech E., Sawka-Dobrowolska W., Bator G., Sobczyk L.
Structure and vibrational spectra of the 1:1squaric acid (H2SQ) - tetramethylpyrazine (TMP) adduct.
Pol. J. Chem., 2007, 81, 643-652.
ImpF: 0.48

24. Pozharskii A. F., Degtyarev A. V., Ryabtsova O. V., Ozeryanskii V. A., Kletskii M. E., Starikova Z. A., Sobczyk L., Filarowski A.
2-α-hydroxyalkyl- and 2,7-di(α-hydroxyalkyl)-1,8-bis(dimethylamino)naphthalenes: stabilization of nonconventional in/out conformers of "proton sponges" via N···H-–O intramolecular hydrogen bonding. A remarkable kind of tandem nitrogen inversion.
J. Org. Chem., 2007, 72, 3006-3019.
ImpF: 3.96

25. Prager M., Wischnewski A., Bator G., Pawlukojć A., Sobczyk L.
INS spectroscopic study of the 1:1 tetramethylpyrazine (TMP) squaric acid (H2SQ) complex.
Chem. Phys., 2007, 334, 148-153.
ImpF: 1.81

26. Prager M., Sawka-Dobrowolska W., Sobczyk L., Pawlukojć A., Grech E., Wischnewski A., Zamponi M.
X-ray diffraction and inelastic neutron scattering study of 2,6-dimethylpyrazine (DMP) chloranilic acid (CLA) complex.
Chem. Phys., 2007, 332, 1-9.
ImpF: 1.81

27. Majewska P., Rospenk M., Czarnik-Matusewicz B., Sobczyk L.
Polarized infrared spectra of liquid crystalline 4-octyloxy-4'-cyanobiphenyl.
Chem. Phys., 2007, 334, 117-127.
ImpF: 1.81

28. Chmielewski P. J., Ozeryanskii V. A., Sobczyk L., Pozharskii A. F.
Primary 1H/2H isotope effect in the NMR chemical shift of HClO4 salts of 1,8-bis(dimethylamino)naphthalene derivatives.
J. Phys. Org. Chem., 2007, 20, 643-648.
ImpF: 1.59

29. Bator G., Sobczyk L., Pawlukojć A., Nowicka-Scheibe J., Grech E., Krawczyk J., Nowina-Konopka M., Natkaniec I., Kalinin I. V., Steinsvoll O.
Inelastic and quasielastic neutron scattering and IR and R spectroscopic studies of 1,2,4,5-tetracyanobenzene(TCNB)-1,2,4,5-tetramethylbenzene(durene) complex.
Phase Transitions, 2007, 80, 489-500.
ImpF: 0.87

30. Majewska P., Rospenk M., Czarnik-Matusewicz B., Kochel A., Sobczyk L., Dąbrowski R.
X-ray diffraction, DFT theoretical, and IR polarized spectroscopic studies of the crystal-like E-mesophase of 4'-hexyloxy-isothiocyanatotolane (6OTOLT).
Chem. Phys., 2007, 340, 227-236.
ImpF: 1.81

31. Pawlukojć A., Bator G., Sobczyk L.
Structure and vibrational spectra of 1,3,5-trimethoxybenzene.
Acta Phys. Pol., A, 2007, 112, Suppl. S-, 171-181.
ImpF: 0.34

32. Pawlukojć A., Natkaniec I., Bator G., Sobczyk L., Grech E., Nowicka-Scheibe J.
Low frequency internal modes of 1,2,4,5-tetramethylbenzene, tetramethylpyrazine and tetramethyl-1,4-benzoquinone INS, Raman, infrared and theoretical DFT studies.
Spectrochim. Acta. Part A, 2006, A63, 766-773.
ImpF: 1.27

33. Pająk J., Rospenk M., Maes G., Sobczyk L.
Matrix-isolation FT-IR and DFT theoretical studies of the intramolecular hydrogen bonding in Mannich bases.
Chem. Phys., 2006, 320, 229-238.
ImpF: 1.98

34. Ozeryanskii V. A., Pozharskii A. F., Schilf W., Kamieński B., Sawka-Dobrowolska W., Sobczyk L., Grech E.
Novel polyfunctional tautomeric systems containing salicylideneamino and proton sponge moieties.
Eur. J. Org. Chem., 2006, 782-790.
ImpF: 2.77

35. Rospenk M., Majewska P., Czarnik-Matusewicz B., Sobczyk L.
Polarized IR spectra of resonance asisted hydrogen bond (RAHB) in 2-hydroxyazobenzenes.
Chem. Phys., 2006, 326, 458-464.
ImpF: 1.98

36. Pawlukojć A., Sawka-Dobrowolska W., Bator G., Sobczyk L., Grech E., Nowicka-Scheibe J.
X-ray diffraction, inelastic neutron scattering (INS) and infrared (IR) studies on 2:1 hexamethylbenzene (HMB)-tetracyanoethylene (TCNE) compkex.
Chem. Phys., 2006, 327, 311-318.
ImpF: 1.98

37. Sawka-Dobrowolska W., Bator G., Czarnik-Matusewicz B., Sobczyk L., Pawlukojć A., Grech E., Nowicka-Scheibe J., Rundlöf H.
X-ray and neutron diffraction, IR and INS spectroscopic and DFT theoretical studies on the tetramethylpyrazine-1,2,4,5-tetracyanobenzene complex.
Chem. Phys., 2006, 327, 237-246.
ImpF: 1.98

38. Prager M., Pietraszko A., Sobczyk L., Pawlukojć A., Grech E., Seydel T., Wischnewski A., Zamponi M.
X-ray diffraction and inelastic neutron scattering study of 1:1 tetramethylpyrazine chloranilic acid complex: temperature, isotope, and pressure effects.
J. Chem. Phys., 2006, 125, 194525, 1-11.
ImpF: 3.17

39. Pozharskii A. F., Ryabtsova O. V., Ozeryanskii V. A., Degtyarev A. V., Starikova Z. A., Sobczyk L., Filarowski A.
2-α-hydroxybenzhydryl- and 2,7-di(α-hydroxybenzhydryl)-1,8-bis(dimethylamino)naphthalenes: the first examples of stabilization of in/out proton sponge conformers by intramolecular hydrogen bonding. The most flattened amino group ever participating in IHB.
Tetrahedron Lett., 2005, 46, 3973-3976.
ImpF: 2.48

40. Prager M., Pawlukojć A., Sobczyk L., Grech E., Grimm H.
Inelastic neutron scattering study of tetramethylpyrazine in the complex with chloranilic acid.
J. Phys. Condens. Matter, 2005, 17, 5725-5739.
ImpF: 2.15

41. Sobczyk L., Grabowski S. J., Krygowski T. M.
Interrelation between H-bond and Pi-electron delocalization.
Chem. Rev., 2005, 105, 3513-3560.
ImpF: 20.87

42. Sawka-Dobrowolska W., Bator G., Sobczyk L., Pawlukojć A., Ptasiewicz-Bąk H., Rundlöf H., Krawczyk J., Nowina-Konopka M., Jagielski P., Janik J. A., Prager M., Steinsvoll O., Grech E., Nowicka-Scheibe J.
Elastic, quasielastic, and inelastic neutron-scattering studies on the charge-transfer hexamethylbenzene-tetracyanoquinodimethane complex.
J. Chem. Phys., 2005, 123, 124305-124309.
ImpF: 3.14

43. Sawka-Dobrowolska W., Bator G., Sobczyk L., Grech E., Nowicka-Scheibe J., Pawlukojć A.
Structure and vibrational spectra of 1:1 chloranilic acid (CLA) - tetramethylpyrazine (TMP) complex.
Struct. Chem., 2005, 16, 287-293.
ImpF: 1.33

44. Ozeryanskii V. A., Pozharskii A. F., Bieńko A., Sawka-Dobrowolska W., Sobczyk L.
[NHN]+ hydrogen bonding in protonated 1,8-bis(dimethylamino)-2,7-dimethoxynaphthalene. X-ray diffraction, infrared, and theoretical ab initio and DFT studies.
J. Phys. Chem. A., 2005, 109, 1637-1642.
ImpF: 2.9

45. Pawlukojć A., Natkaniec I., Bator G., Grech E., Sobczyk L.
Inelastic neutron scattering studies on dichloro-1,4-benzoquinones.
Spectrochim. Acta. Part A, 2004, 60, 2875-2882.
ImpF: 1.19

46. Pająk J., Rospenk M., Galewski Z., Sobczyk L.
Structure and liquid crystalline properties of 2-hydroxyazobenzenes. X-ray diffraction, infra-red and DFT theoretical studies.
J. Mol. Struct., 2004, 700, 191-197.
ImpF: 1.2

47. Pawlukojć A., Natkaniec I., Nowicka-Scheibe J., Grech E., Sobczyk L.
Inelastic neutron scattering (INS) studies on 2,5-dihydroxy-1,4-benzoquinone (DHBQ).
Spectrochim. Acta. Part A, 2003, 59, 537-542.
ImpF: 1.32

48. Pająk J., Rospenk M., Sobczyk L.
Liquid crystalline properties and IR spectra of 2'-hydroxy-4'-octyloxyazobenzenes.
Spectrochim. Acta. Part A, 2003, 59, 2131-2140.
ImpF: 1.32

49. Pająk J., Rospenk M., Galewski Z., Sobczyk L.
4-chloro-2'-hydroxy-4'-alkoxyazobenzenes. Intramolecular OH··N hydrogen bonding and liquid crystalline properties.
J. Mol. Liq., 2003, 105, 53-64.
ImpF: 0.7

50. Pawlukojć A., Natkaniec I., Bator G., Sobczyk L., Grech E.
Inelastic neutron scattering (INS) spectrum of tetracyanoquinodimethane (TCNQ).
Chem. Phys. Lett., 2003, 378, 665-672.
ImpF: 2.44

51. Nowicka-Scheibe J., Grech E., Sośnicki J. G., Głowiak T., Sawka-Dobrowolska W., Sobczyk L.
Structural studies on (3,4,8,9)-dibenzo-2,7-dioxa-5,10-diaza[4.4.4]propellanes (DDDP).
J. Mol. Struct., 2003, 655, 17-22.
ImpF: 1.02

52. Bieńko A., Latajka Z., Sawka-Dobrowolska W., Sobczyk L., Ozeryanskii V. A., Pozharskii A. F., Grech E., Nowicka-Scheibe J.
Low barrier hydrogen bond in protonated proton sponge. X-ray diffraction, infrared, and theoretical ab initio and density functional theory studies.
J. Chem. Phys., 2003, 119, 4313-4319.
ImpF: 2.95

53. Pawlukojć A., Bator G., Sobczyk L., Grech E., Nowicka-Scheibe J.
Inelastic neutron scattering, Raman, infrared and DFT theoretical studies on chloranilic acid.
J. Phys. Org. Chem., 2003, 16, 709-714.
ImpF: 1.18

54. Nowicka-Scheibe J., Sośnicki J. G., Grech E., Głowiak T., Sobczyk L.
On a new unexpected benzoxazino-benzoxazine derivative.
Pol. J. Chem., 2003, 77, 1419-1426.
ImpF: 0.52

55. Majerz I., Pawlukojć A., Sobczyk L., Grech E., Nowicka-Scheibe J.
Dimerization of 1,8-diaminonaphthalene. DFT theoretical, infra-red, Raman and inelastic neutron scattering studies.
Pol. J. Chem., 2002, 76, 409-417.
ImpF: 0.53

56. Ozeryanskii V. A., Pozharskii A. F., Głowiak T., Majerz I., Sobczyk L., Grech E., Nowicka-Scheibe J.
X-ray diffraction and IR-spectroscopic studies on protonated 4-amino-1,8-bis(dimethylamino)naphthalene.
J. Mol. Struct., 2002, 607, 1-8.
ImpF: 1.12

57. Pająk J., Rospenk M., Ramaekers R., Maes G., Głowiak T., Sobczyk L.
DFT theoretical, X-ray diffraction and IR matrix-isolated studies on 4-chloro-2'-hydroxy-4'-ethoxyazobenzene.
Chem. Phys., 2002, 278, 89-100.
ImpF: 2.2

58. Huyskens P. L., Sobczyk L., Majerz I.
On a hard/soft hydrogen bond interaction.
J. Mol. Struct., 2002, 615, 61-72.
ImpF: 1.12

59. Pająk J., Galewski Z., Rospenk M., Sobczyk L.
Liquid crystalline properties of and intramolecular hydrogen bonding in 4-methyl-2´-hydroxy-4´alkoxyazobenzenes.
Liquid Cryst., 2001, 28, 1003-1008.
ImpF: 1.97

60. Rospenk M., Sobczyk L., Schah-Mohammedi P., Limbach H. H., Golubev N. S., Melikova S. M.
Dimerization and solvent-assisted proton dislocation in the low-barrier hydrogen bond of a Mannich base: a low-temperature NMR study.
Magn. Reson. Chem., 2001, 39 Special Issue, S, 81-90.
ImpF: 0.9

61. Pawlukojć A., Natkaniec I., Majerz I., Sobczyk L., Grech E.
Inelastic neutron scattering (INS) studies on low frequency vibrations of 1,4-benzoquinone.
Chem. Phys. Lett., 2001, 346, 112-116.
ImpF: 2.36

62. Kuc T., Pawełka Z., Sobczyk L.
Solvent assisted proton transfer processes in phenol-amine complexes revealed in effective dipole moments.
Phys. Chem., Chem. Phys., 2001, 3, 5201-5207.
ImpF: 1.79

63. Pawlukojć A., Natkaniec I., Majerz I., Sobczyk L.
Inelastic neutron scattering studies on low frequency vibrations of pentachlorophenol.
Spectrochim. Acta. Part A, 2001, 57, 2775-2779.
ImpF: 0.84

64. Pająk J., Rospenk M., Głowiak T., Sobczyk L.
DFT theoretical, spectroscopic and X-ray diffraction studies on 4-methyl-2'-hydroxy-4'-alkyloxyazobenzenes.
Chem. Phys., 2001, 274, 15-21.
ImpF: 1.96

65. Głowiak T., Majerz I., Sobczyk L., Brzeziński B., Wojciechowski G., Grech E.
[OHO]- and+[NHO]- hydrogen bonds in the 2:1 adduct of pentachlorophenol with 7-methyl-1,5,7-triazabicyclo[4.4.0] dec-5-ene[(PCP)2·MTBD].
J. Mol. Struct., 2000, 526, 177-184.
ImpF: 0.85

66. Majerz I., Pawlukojć A., Sobczyk L., Dziembowska T., Grech E., Szady-Chełmieniecka A.
The infrared, Raman and inelastic neutron scattering studies on 5-nitro-N-salicylideneethylamine.
J. Mol. Struct., 2000, 552, 243-247.
ImpF: 0.85

67. Sobczyk L., Lis T., Olejnik Z., Majerz I.
The OHN hydrogen bonding in the adduct of 2,4-dinitrobenzoic acid with pyridine. Low temperature X-ray diffraction and IR spectroscopic studies.
J. Mol. Struct., 2000, 552, 233-241.
ImpF: 0.85

68. Baran J., Pawlukojć A., Majerz I., Malarski Z., Sobczyk L., Grech E.
Vibrational spectra of the adduct of 1,8-bis(dimethylamino)naphthalene with dichloromaleic acid (DMAN·DCM).
Spectrochim. Acta. Part A, 2000, 56, 1801-1812.
ImpF: 1.02

69. Król I., Rospenk M., Sobczyk L.
On the association of aminopyridines.
J. Mol. Struct., 2000, 552, 213-221.
ImpF: 0.85

70. Malarski Z., Lis T., Olejnik Z., Grech E., Nowicka-Scheibe J., Majerz I., Sobczyk L.
Proton sponge as a deprotonating agent in crystal engineering. Structure and IR spectra of double-deprotonated 1,5-bis(ρ-toluenesulphonamido)-2,4,6,8-tetranitronaphthalene in the DMAN adduct.
J. Mol. Struct., 2000, 552, 249-256.
ImpF: 0.85

71. Sobczyk L.
NMR studies on hydrogen bonding and proton transfer in Mannich bases.
Appl. Magn. Reson., 2000, 18, 47-61.
ImpF: 0.78

72. Kuc T., Pawełka Z., Sobczyk L.
The complexation and proton transfer equilibria and polarizability of phenol-tributylamine systems.
Phys. Chem., Chem. Phys., 2000, 2, 211-216.
ImpF: 1.65

73. Brzeziński B., Wojciechowski W., Zundel G., Sobczyk L., Grech E.
Negatively charged hydrogen - bonded chains formed by tetrazole.
J. Mol. Struct., 1999, 508, 175-180.
ImpF: 0.87

74. Grech E., Malarski Z., Sawka-Dobrowolska W., Sobczyk L.
Low-temperature (120 K) structure and vibrational spectrum of protonated proton sponge: the adduct of 1,8-bis(dimethylamino)naphthalene (DMAN) with 4,5-dicyanoimidazole (DCI).
J. Phys. Org. Chem., 1999, 12, 313-318.
ImpF: 1.2

75. Rospenk M., Sobczyk L., Rabold A., Zundel G.
Low temperature studies on ultraviolet and infrared spectra of ortho Mannich bases.
Spectrochim. Acta. Part A, 1999, 55A, 855-860.
ImpF: 1.01

76. Schreiber W. M., Rospenk M., Sobczyk L.
A strong effect of hydrogen bonding upon δ(NC3) bands in the IR spectra of trimethylamine.
Chem. Phys. Lett., 1999, 304, 73-78.
ImpF: 2.27

77. Głowiak T., Majerz I., Malarski Z., Sobczyk L., Pozharskii A. F., Ozeryanskii V. A., Grech E.
Structure and IR spectroscopic behaviour of 2,7-dichloro-1,8-bis(dimethylamino)naphthalene and its protonated form.
J. Phys. Org. Chem., 1999, 12, 895-900.
ImpF: 1.2

78. Bator G., Baran J., Jakubas R., Sobczyk L.
The structure and vibrational spectra of some ferroelectric and ferroelastic alkylammonium halogenoantimonates(III) and bismuthates(III). .
J. Mol. Struct., 1998, 450, 89-100.
ImpF: 0.81

79. Głowiak T., Grech E., Lis T., Nowicka-Scheibe J., Malarski Z., Sawka-Dobrowolska W., Stefaniak L., Sobczyk L.
The [NHN]- homoconjugated anions. X-ray diffraction, IR and multinuclear MR studies.
J. Mol. Struct., 1998, 448, 121-130.
ImpF: 0.81

80. Jerzykiewicz L. B., Malarski Z., Sobczyk L., Lis T., Grech E.
The quasi-symmetric OHN and ODN bridges in the adducts of 3,5-dimethylpyridine with 3,5-dinitrobenzoic acid.
J. Mol. Struct., 1998, 440, 175-185.
ImpF: 0.81

81. Pawlukojć A., Natkaniec I., Grech E., Baran J., Malarski Z., Sobczyk L.
Incoherent inelastic neutron scattering, Raman and IR absorption studies in 1,8-bis(dimethylamino)naphthalene and its protonated forms.
Spectrochim. Acta. Part A, 1998, A54, 439-448.
ImpF: 0.69

82. Sobczyk L.
X-ray diffraction, IR, UV and NMR studies on proton transfer equilibrating phenol-N-base systems.
Ber. Bunsenges. Phys. Chem., 1998, 102, 377-383.
ImpF: 1.36

83. Majerz I., Malarski Z., Sobczyk L.
Proton transfer and correlations between the C-O, O-H, N-H, and O··· N bond lengths in amine phenolates.
Chem. Phys. Lett., 1997, 274, 361-364.
ImpF: 2.44

84. Brzeziński B., Grech E., Malarski Z., Rospenk M., Schroeder G., Sobczyk L.
Protonation of very strong bases by phenols in non-aqueous solutions.
J. Chem. Res.(S), 1997, 151-151.
ImpF: 0.67

85. Głowiak T., Grech E., Malarski Z., Sobczyk L.
A network of hydrogen bonds in the polyanion of 2-amino-4,5-dicyanoimidazole formed in the 2:1 adduct with 1,8-bis(dimethylamino)naphthalene.
J. Mol. Struct., 1997, 403, 73-82.
ImpF: 0.88

86. Grech E., Malarski Z., Sawka-Dobrowolska W., Sobczyk L.
The structure and IR spectra of the 1:1 and 1:2 adducts of 1,8-bis (dimethylamino) naphthalene (DMAN) with 4,5-dicyanoimidazole (DCI).
J. Mol. Struct., 1997, 406, 107-117.
ImpF: 0.88

87. Majerz I., Sawka-Dobrowolska W., Sobczyk L.
Hydrogen bonds in 4-dihydroxymethylpyridinium with 2,6-dichloro-4-nitrophenolate.
J. Mol. Struct., 1997, 416, 113-120.
ImpF: 0.88

88. Grech E., Malarski Z., Sawka-Dobrowolska W., Sobczyk L.
[NHN]+ and [OHO]-hydrogen bonding in the adduct of 1,8-bis(dimethylamino)- naphthalene (DMAN) with 1,8-dihydroxy-2,4-dinitronaphthalene.(DHDNN).
J. Mol. Struct., 1997, 416, 227-234.
ImpF: 0.88

89. Grech E., Malarski Z., Milart P., Sawka-Dobrowolska W., Sobczyk L.
Hydrogen bonds in the adduct of 1,8-bis(N, N-dimethylamino)naphthalene (DMAN) with 4-(p-nitrophenyl)disic acid (NPDA).
J. Mol. Struct., 1997, 436-437, 81-89.
ImpF: 0.88

90. Sobczyk L., Jakubas R., Zaleski J.
Self-assembly of Sb(III) and Bi(III) halo-coordinated octahedra in salts of organic cations. Structure, properties and phase transitions.
Pol. J. Chem., 1997, 71, 265-300.
ImpF: 0.47

91. Schreiber V. M., Rospenk M., Kulbida A. I., Sobczyk L.
Shaping of broad IR absorption in proton transfer equilibrating OH··· N hydrogen bonded systems.
Spectrochim. Acta. Part A, 1997, A53, 2067-2078.
ImpF: 0.78

92. Rospenk M., Koll A., Sobczyk L.
Proton transfer and secondary deuterium isotope effect in the 13C NMR spectra of ortho-aminomethyl phenols.
Chem. Phys. Lett., 1996, 261, 283-288.
ImpF: 2.59

93. Grech E., Nowicka-Scheibe J., Olejnik Z., Lis T., Pawełka Z., Malarski Z., Sobczyk L.
An IR, NMR, dipole moment and X-ray study on intramolecular O-H··· N hydrogen bonding in 8-hydroxy -N,N-dimethyl-1-naphthylamine.
J. Chem. Soc., Perkin 2, 1996, 343-348.
ImpF: 1.93

94. Schreiber V. M., Kulbida A. I., Rospenk M., Sobczyk L., Rabold A., Zundel G.
Temperature effect on proton-transfer equilibrium and IR spectra of chlorophenol-tributylamine systems.
J. Chem. Soc., Faraday Trans., 1996, 92, 2555-2561.
ImpF: 1.66

95. Głowiak T., Grech E., Malarski Z., Nowicka-Scheibe J., Sobczyk L.
Intramolecular [NHN]+ and [NHN]- hydrogen bonds in the adduct of 1,8-bis(dimethylamino)naphthalene with 1,8-diamino-2,4,5,7-tetranitronaphthalene.
J. Mol. Struct., 1996, 381, 169-175.
ImpF: 0.87

96. Majerz I., Sawka-Dobrowolska W., Sobczyk L.
Structure and spectroscopic behaviour of the adduct of 4-N,N-dimethylaminopyridine with 2,6-dichloro-4-nitrophenol.
J. Mol. Struct., 1996, 375, 37-42.
ImpF: 0.87

97. Majerz I., Sawka-Dobrowolska W., Sobczyk L.
Structure and spectroscopic behaviour of adduct of 2,6-dichloro-4-nitrophenol with 2,4,6-trimethylpyridine.
Acta Phys. Pol., A, 1995, 88, 349-357.
ImpF: 0.36

98. Rospenk M., Koll A., Sobczyk L.
Deuterium isotope effect on 13C NMR spectra of ortho Mannich bases.
J. Mol. Liq., 1995, 67, 63-69.
ImpF: 1.36

99. Sawka-Dobrowolska W., Grech E., Brzeziński B., Malarski Z., Sobczyk L.
NHN+ hydrogen bonding in salts of 1,8-bis(dimethylaminomethyl)naphthalene (DMAMN).
J. Mol. Struct., 1995, 356, 117-124.
ImpF: 0.95

100. Sitkowski J., Stefaniak L., Rospenk M., Sobczyk L., Webb G. A.
Multinuclear, variable-temperature NMR study of hydrogen bonding in two ortho-Mannich bases.
J. Phys. Org. Chem., 1995, 8, 463-467.
ImpF: 0.96

101. Bator G., Jakubas R., Baran J., Sobczyk L.
Infrared studies of ferroelectric phase transition in [NH2(CH3)2]3Sb2Br9.
Ferroelectrics, 1994, 152, 267-272.
ImpF: 0

102. Brzeziński B., Grech E., Malarski Z., Sobczyk L.
FTIR studies of proton sponges protonation by mercaptocompounds in acetonitrile.
Pol. J. Chem., 1994, 68, 261-267.
ImpF: 0

103. Brzeziński B., Grech E., Nowicka-Scheibe J., Głowiak T., Malarski Z., Sobczyk L.
NHN+ and NHN- hydrogen bonds in the adducts of 1,8-bis(dimethylamino) naphthalene with 1,8-bis(trifluoroacetamido)naphthalene and 1,8-bis(4-tolu-enesulphonamido)-2,4,5,7-tetranitronaphthalene.
J. Mol. Struct., 1994, 327, 71-79.
ImpF: 0.84

104. Jakubas R., Bator G., Sobczyk L., 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.
ImpF: 0.43

105. Jakubas R., Bator G., Sobczyk L., Mróz J.
Dielectric and pyroelectric properties of (CH3NH3)3Me2Br9 (Me= Sb,Bi) crystals in the ferroelectric phase transition regions.
Ferroelectrics, 1994, 158, 43-48.
ImpF: 0

106. Majerz I., Sawka-Dobrowolska W., Sobczyk L.
The structure and IR spectrum of the hydrogen-bonded adduct of 2,6-dichloro-4-nitrophenol with 3,4-dimethylpyridine.
J. Mol. Struct., 1994, 319, 1-9.
ImpF: 0.84

107. Sawka-Dobrowolska W., Grech E., Brzeziński B., Malarski Z., Sobczyk L.
Crystal and molecular structure and IR spectrum of 1,8-bis(dimethylaminomethyl)naphthalene monoperchlorate.
J. Mol. Struct., 1994, 319, 11-16.
ImpF: 0.84

108. Bator G., Jakubas R., Sobczyk L., Mróz J.
Dielectric and pyroelectric properties of [N(CH3)3H]3Sb2Cl9 in the low temperature region.
Ferroelectrics, 1993, 141, 177-187.
ImpF: 0

109. Brzeziński B., Głowiak T., Grech E., Malarski Z., Sawka-Dobrowolska W., Sobczyk L.
Crystal and molecular structure and IR spectra of the 1 : 1 and 1 : 2 adducts of 1,8-bis(dimethylaminomethyl)naphthalene with picric acid.
J. Mol. Struct., 1993, 299, 1-9.
ImpF: 0.89

110. Denisov G. S., Gindin V. A., Golubev N. S., Koltsov A. I., Smirnov S. N., Rospenk M., Koll A., Sobczyk L.
Pyramidal nitrogen inversion hindered by a strong intramolecular hydrogen bond in 2-diethylaminomethylphenols.
Magn. Reson. Chem., 1993, 31, 1034-1037.
ImpF: 1.04

111. Głowiak T., Grech E., Malarski Z., Sobczyk L.
[NHN]+ and [OHO]- hydrogen bridges in the 1:1 adduct of 1,8-bis(dimethylamino)naphthalene with 3,4-furandicarboxylic acid.
J. Mol. Struct., 1993, 295, 105-111.
ImpF: 0.89

112. Majerz I., Sawka-Dobrowolska W., Sobczyk L.
Structure and IR spectroscopic behaviour of the adduct of 4-methylpyridine with 2,6-dichloro-4-nitrophenol.
Pol. J. Chem., 1993, 67, 1657-1665.
ImpF: 0

113. Majerz I., Sawka-Dobrowolska W., Sobczyk L.
Structure and spectroscopic behaviour of the solid adduct of 3-methylpyridine with 2,6-dichloro-4-nitrophenol.
J. Mol. Struct., 1993, 297, 177-184.
ImpF: 0.89

114. Majerz I., Sobczyk L.
UV absorption spectra of pentachlorophenol and amine hydrogen bonded complexes in the solid state.
J. Chim. Phys., 1993, 90, 1657-1666.
ImpF: 0.62

115. Brzeziński B., Głowiak T., Grech E., Malarski Z., Sobczyk L.
Structure and IR spectra of protonated 1,8-bis(dimethylamino)naphthalene proton sponge.
Croat. Chem. Acta, 1992, 65, 101-108.
ImpF: 0.4

116. Brzeziński B., Schroeder G., Grech E., Malarski Z., Sobczyk L.
Basicity, IR spectra and protonation of some proton sponges in acetonitrile.
J. Mol. Struct., 1992, 274, 75-82.
ImpF: 0.94

117. Czupiński O., Sobczyk L., Czapla Z.
Phase transitions and properties of mixed RbHSeO4-RbHSO4 crystals.
Ferroelectrics, 1992, 135, 271-275.
ImpF: 0.77

118. Głowiak T., Malarski Z., Sobczyk L., Grech E.
New example of a symmetric NHN hydrogen bond in protonated 1,8-bis(dimethylamino)naphthalene (DMAN).
J. Mol. Struct., 1992, 270, 441-447.
ImpF: 0.94

119. Grech E., Malarski Z., Sobczyk L.
Coupling of ν(NH···N) vibrations with the γ(NH···N) overtone in solid imidazole derivatives.
Spectrochim. Acta. Part A, 1992, 48A, 519-523.
ImpF: 0.81

120. Lefebvre J., Carpentier P., Jakubas R., Sobczyk L.
The para-ferroelectric phase transitions in (NH3(CH3)5Bi2Cl11. (P.M.A.C.B.).
Phase Transitions, 1991, 33, 31-41.
ImpF: 0.72

121. Brzeziński B., Grech E., Malarski Z., Sobczyk L.
Infrared spectra and protonation of 1,8-bis(dimethylamino)naphthalene in acetonitrile.
J. Chem. Soc., Faraday Trans., 1990, 86, 1777-1780.
ImpF: 1.45

122. Galewski Z., Jakubas R., Sobczyk L.
Phase transitions in dimethylammonium halogenoantimonates (III).
Acta Phys. Pol., A, 1990, A78, 645-650.
ImpF: 0.34

123. Grech E., Stefaniak L., Ando I., Yoshimizu H., Webb G. A., Sobczyk L.
Some multinuclear NMR solution and solid state studies on 1,8-bis(dimethylamino)naphthalene and its complex with tetrazole.
Bull. Chem. Soc. Jpn., 1990, 63, 2716-2717.
ImpF: 0.82

124. Jakubas R., Sobczyk L.
Phase transitions in alkylammonium halogenoantimonates and bismuthates.
Phase Transitions, 1990, 20, 163-193.
ImpF: 0.72

125. Jakubas R., Zaleski J., Sobczyk L.
Phase transitions in (CH3NH3)3Bi2I9 (MAIB).
Ferroelectrics, 1990, 108, 109-114.
ImpF: 0.46

126. Kalenik J., Majerz I., Malarski Z., Sobczyk L.
Isotopic effect on35CL NQR spectra of pentachlorophnol-amine hydrogen-bonded complexes.
Chem. Phys. Lett., 1990, 165, 15-18.
ImpF: 2.4

127. Kalenik J., Majerz I., Sobczyk L., Grech E., Habeeb M. M. M.
Infra-red and35Cl nuclear quadrupole resonance studies of hydrogen bonded adducts of 2-chlorobenzoic acid derivatives.
Collect. Czech. Chem. Commun., 1990, 55, 80-90.
ImpF: 0.47

128. Matuszewski J., Jakubas R., Sobczyk L., Głowiak T.
Structure of pentakis(methylammonium) undecabromodibismuthate.
Acta Crystallogr., Sect. C. Cryst. Structure Commun., 1990, C46, 1385-1388.
ImpF: 0.46

129. Zaleski J., Jakubas R., Sobczyk L.
Succesive phase transitions and ferroelasticity of [(CH3)2NH2]3Bi2I9.
Phase Transitions, 1990, 27, 25-36.
ImpF: 0.72

130. Zaleski J., Jakubas R., Sobczyk L., Mróz J.
Properties and structural phase transitions of (CH3NH3)3Sb2I9.
Ferroelectrics, 1990, 103, 83-90.
ImpF: 0.46

131. Zeegers-Huyskens Th., Sobczyk L.
Critical behaviour of strong hydrogen bonds and the isotopic effects.
J. Mol. Liq., 1990, 46, 263-284.
ImpF: 0.63

132. Zeegers-Huyskens Th., Sobczyk L.
Isotopic ratio υHXDX of hydrogen halide complexes in solid argon.
Spectrochim. Acta. Part A, 1990, 46A, 1693-1698.
ImpF: 0.79

133. Jakubas R., Sobczyk L.
Structure and properties of a novel ferroelectric crystal: (CH3NH3)5Bi2Br11.
Ferroelectrics, 1989, 92, 365-368.
ImpF: 1.62

134. Jakubas R., Sobczyk L., Lefebvre J.
A new ferroelectric crystal: (CH3NH3)5Bi2Cl11.
Ferroelectrics, 1989, 100, 143-149.
ImpF: 1.62

135. Jakubas R., Tomaszewski P. E., Sobczyk L.
Phase transition in (CH3NH3)3Bi2Cl9.
Phys. Status Solidi. A, 1989, 111, K, 27-29.
ImpF: 0.6

136. Kalenik J., Majerz I., Sobczyk L., Grech E., Habeeb M. M. M.
35Cl nuclear quadrupole resonance and infrared studies of hydrogen-bonded adducts of 2-chloro-4-nitrobenzoic acid.
J. Chem. Soc., Faraday Trans., 1989, 85, 3187-3193.
ImpF: 1.54

137. Rospenk M., Koll A., Głowiak T., Sobczyk L.
The hydrogen bond in 2-(N,N-dimethylamino-N-oxymethyl)-4,6-dimethylophenol.
J. Mol. Struct., 1989, 195, 33-41.
ImpF: 0.86

138. Rospenk M., Sobczyk L.
1H NMR studies of proton transfer in ortho-Mannich bases.
Magn. Reson. Chem., 1989, 27, 445-450.
ImpF: 1.23

139. Zaleski J., Głowiak T., Jakubas R., Sobczyk L.
Crystal structure and phase transitions of [(C2H5)4N]6Bi8Cl30.
J. Phys. Chem. Solids, 1989, 50, 1265-1269.
ImpF: 0.92

140. Zaleski J., Jakubas R., Galewski Z., Sobczyk L.
Structural phase transitions in [(C2H5)4N]3Sb2Br9 and [(C2H5)4N]3Bi2Br9.
Z. Naturforsch., A: Phys. Sci., 1989, 44, 1102-1106.
ImpF: 0.9