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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: 207.29

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.
ISSN 1420-3049
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.
ISSN 0022-2860
ImpF: 1.4

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.
ISSN 0301-0104
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.
ISSN 0301-0104
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.
ISSN 0009-2614
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.
ISSN 1520-6106
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.
ISSN 0301-0104
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.
ISSN 0021-9606
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.
ISSN 0022-2860
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.
ISSN 0022-2860
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.
ISSN 0022-2860
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.
ISSN 1385-2728
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.
ISSN 0009-2614
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.
ISSN 1385-2728
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.
ISSN 0137-5083
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.
ISSN 0021-9606
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.
ISSN 0137-5083
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.
ISSN 0010-0765
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.
ISSN 0040-4020
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.
ISSN 0301-0104
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.
ISSN 0022-2860
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.
ISSN 0021-9606
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.
ISSN 0137-5083
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.
ISSN 0022-3263
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.
ISSN 0301-0104
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.
ISSN 0301-0104
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.
ISSN 0301-0104
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.
ISSN 0894-3230
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.
ISSN 0141-1594
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.
ISSN 0301-0104
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.
ISSN 0587-4246
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.
ISSN 1386-1425
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.
ISSN 0301-0104
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.
ISSN 1434-193X
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.
ISSN 0301-0104
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.
ISSN 0301-0104
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.
ISSN 0301-0104
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.
ISSN 0021-9606
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.
ISSN 0040-4039
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.
ISSN 0953-8984
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.
ISSN 0009-2665
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.
ISSN 0021-9606
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.
ISSN 1040-0400
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.
ISSN 1089-5639
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.
ISSN 1386-1425
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.
ISSN 0022-2860
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.
ISSN 1386-1425
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.
ISSN 1386-1425
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.
ISSN 0167-7322
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.
ISSN 0009-2614
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.
ISSN 0022-2860
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.
ISSN 0021-9606
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.
ISSN 0894-3230
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.
ISSN 0137-5083
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.
ISSN 0137-5083
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.
ISSN 0022-2860
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.
ISSN 0301-0104
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.
ISSN 0022-2860
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.
ISSN 0267-8292
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.
ISSN 0009-2614
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.
ISSN 1463-9076
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.
ISSN 1386-1425
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.
ISSN 0301-0104
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.
ISSN 0022-2860
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.
ISSN 0022-2860
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.
ISSN 0022-2860
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.
ISSN 1386-1425
ImpF: 1.02

69. Król I., Rospenk M., Sobczyk L.
On the association of aminopyridines.
J. Mol. Struct., 2000, 552, 213-221.
ISSN 0022-2860
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.
ISSN 0022-2860
ImpF: 0.85

71. Sobczyk L.
NMR studies on hydrogen bonding and proton transfer in Mannich bases.
Appl. Magn. Reson., 2000, 18, 47-61.
ISSN 0937-9347
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.
ISSN 1463-9076
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.
ISSN 0022-2860
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.
ISSN 0894-3230
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.
ISSN 1386-1425
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.
ISSN 0009-2614
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.
ISSN 0894-3230
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.
ISSN 0022-2860
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.
ISSN 0022-2860
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.
ISSN 0022-2860
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.
ISSN 1386-1425
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.
ISSN 0009-2614
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.
ISSN 0022-2860
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.
ISSN 0022-2860
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.
ISSN 0022-2860
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.
ISSN 0022-2860
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.
ISSN 0022-2860
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.
ISSN 0137-5083
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.
ISSN 1386-1425
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.
ISSN 0009-2614
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.
ISSN 0022-2860
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.
ISSN 0022-2860
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.
ISSN 0587-4246
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.
ISSN 0167-7322
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.
ISSN 0022-2860
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.
ISSN 0894-3230
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.
ISSN 0015-0193
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.
ISSN 0137-5083
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.
ISSN 0022-2860
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.
ISSN 0141-1594
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.
ISSN 0015-0193
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.
ISSN 0022-2860
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.
ISSN 0022-2860
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.
ISSN 0015-0193
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.
ISSN 0022-2860
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.
ISSN 0022-2860
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.
ISSN 0137-5083
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.
ISSN 0022-2860
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.
ISSN 0011-1643
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.
ISSN 0022-2860
ImpF: 0.94

117. Czupiński O., Sobczyk L., Czapla Z.
Phase transitions and properties of mixed RbHSeO4-RbHSO4 crystals.
Ferroelectrics, 1992, 135, 271-275.
ISSN 0015-0193
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.
ISSN 0022-2860
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.
ISSN 1386-1425
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.
ISSN 0141-1594
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.
ISSN 0587-4246
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.
ISSN 0009-2673
ImpF: 0.82

124. Jakubas R., Sobczyk L.
Phase transitions in alkylammonium halogenoantimonates and bismuthates.
Phase Transitions, 1990, 20, 163-193.
ISSN 0141-1594
ImpF: 0.72

125. Jakubas R., Zaleski J., Sobczyk L.
Phase transitions in (CH3NH3)3Bi2I9 (MAIB).
Ferroelectrics, 1990, 108, 109-114.
ISSN 0015-0193
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.
ISSN 0009-2614
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.
ISSN 0010-0765
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.
ISSN 0108-2701
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.
ISSN 0141-1594
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.
ISSN 0015-0193
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.
ISSN 0167-7322
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.
ISSN 1386-1425
ImpF: 0.79

133. Jakubas R., Sobczyk L.
Structure and properties of a novel ferroelectric crystal: (CH3NH3)5Bi2Br11.
Ferroelectrics, 1989, 92, 365-368.
ISSN 0015-0193
ImpF: 1.62

134. Jakubas R., Sobczyk L., Lefebvre J.
A new ferroelectric crystal: (CH3NH3)5Bi2Cl11.
Ferroelectrics, 1989, 100, 143-149.
ISSN 0015-0193
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.
ISSN 0022-2860
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.
ISSN 0022-3697
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