Employee

Ewa Daniela Raczyńska


prof. dr hab.

Ewa Daniela Raczyńska

Faculty of Food Sciences

Department of Chemistry

+48 22 59 376 23



EDUCATION AND TITLES

M.Sc. (1978) Department of Chemistry, Warsaw University

Dr. (1984) Department of Chemistry, Warsaw University

Dr.Sc. (1994) Department of Chemistry, Warsaw University

Prof. (2007) Department of Chemistry, Warsaw University



PROFESIONAL EXPERIANCE

1978-1979 Institute of Physics, Polish Academy of Science, Warsaw

1979-1984 Department of Chemistry, Warsaw University, Warsaw

since 1985 Department of Chemistry, Warsaw University of Life Sciences, Warsaw

1985-90 Uniwersity of Nantes (France)

1989-95, 1997, 2000 Uniwersity of Nice (France)

1993-94 Uniwersity of California, Irvine (USA)



RESEARCH FIELDS

Organic Chemistry

Physical Organic Chemistry

Structural Chemistry

Computational Chemistry

Publications

  1. LIST OF PAPERS

  2. 146. Raczyńska E.D., Gal J.-F., Maria P.-C. Chem. Rev. 2016, 116, 13454-13511. "Enhanced basicity of push-pull nitrogen bases in the gas phase."

  3. 145. Chylewska A., Ogryzek M., Głębocka A., Sikorski A., Turecka K., Raczyńska E.D., Makowski M. RSC Advances 2016, 6, 64499-64512. "Crystalline pyrazine-2-amidoxime isolated by diffusion method and its structural and behavioral analysis in the context of

  4. 144. Głębocka A., Raczyńska E.D., Chylińska A., Makowski M. J. Phys. Org. Chem. 2016, 29, 326-335. "Experimental (FT-IR) and theoretical (DFT) studies on prototropy and H-bond formation for pyrazine-2-amidoxime."

  5. 143. Raczyńska E.D., Michalec P., Zalewski M., Sapuła M. J. Mol. Model. 2016, 22, 22-146. "Effects of ionization on stability of 1-methylcytosine - DFT and PCM studies."

  6. 142. Raczyńska E.D., Sapuła M., Zientara-Rytter K., Kolcyz}ska K., Stpniewski T., Hallmann M. Struct. Chem. 2016, 27, 133+143. "DFT Studies on the favored and rare tautomers of neutral and redox cztosine."

  7. 141. Raczyńska E.D., Makowski M., Maria P.-C., Gal J.-F., J. Phys. Chem. A 2015, 119, 8225-8236. "Can Nitriles Be Stronger Bases than Proton Sponges in the Gas Phase. A Computational Analysis."

  8. 140. Raczyńska E.D., Gal J.-F., Maria P.-C., RSC Advances 2015, 5, 25513-25517. "Exceptional Proton Affinities of Push-Pull Nitriles Substituted by the Guanidino and Phosphazeno groups."

  9. 139. Raczyńska E.D., Makowski M., Hallmann M., Kamińska B. RSC Advances 2015, 5, 36587-36604. "Geometric and Energetic Consequences of Prototropy for Adenine and Its Structural Models - A Review."

  10. 138. Raczyńska E.D., Bulg. Chem. Commun. 2015, 47, 594-602. "Geometric and Energetic Consequences of Prototropy for Neutral and Ionized 4-Aminopyrimidine in Water Solution."

  11. 137. Raczyńska E.D. Comput. Theor. Chem. 2014, 1042, 8-15. "Electron Delocalization and Relative Stabilities for the Favored and Rare Tautomers of Hydroxyazines in the Gas Phase - A Comparison with Aminoazines."

  12. 136. Raczyńska E.D., Makowski M. J. Mol. Model. 2014, 20, 2234. "Geometric Consequences of Electron Delocalization for Adenine Tautomers in Aqueous Solution."

  13. 135. Raczyńska E.D, Comput. Theor. Chem. 2014, 1031, 56-63. "Effects of Positive and Negative Ionization for 2-Aminopyrimidine in the Gas Phase and in Water Solution."

  14. 134. Raczyńska E.D., Kolczyńska K., Stępniewski T.M., Kamińska B., Comput. Theor. Chem. 2013, 1022, 35. "On Relation between Prototropy and Electron Delocalization for Neutral and Redox Adenine - DFT Studies."

  15. 133. Raczyńska E.D., Kamińska B., J. Mol. Model. 2013, 19, 3947. "Variations of the Tautomeric Preferences and pi-Electron Delocalization for the Neutral and Redox Forms of Purine when Proceeding from the Gas Phase (DFT) to Water (PCM)."

  16. 132. Raczyńska E.D., Makowski M., Zientara-Rytter K., Kolczyńska K., Stępniewski T.M., Hallmann M., J. Phys. Chem. A 2013, 117, 1548. "Quantum-Chemical Studies on the Favored and Rare Tautomers of Neutral and Redox Adenine."

  17. 131. Raczyńska E.D., Stępniewski T.M., Kolczyńska K., J. Mol. Model. 2012, 18, 4367. "DFT Studies on One-Electron Oxidation and One-Electron Reduction for 2- and 4-Aminopyridines."

  18. 130. Raczyńska E.D., Comput. Theor. Chem. 2012, 993, 73. "Quantum-Chemical Studies of the Consequences of One-Electron Oxidation and One-Electron Reduction for Imidazole in the Gas Phase and Water."

  19. 129. Raczyńska E.D., Kolczyńska K., Stępniewski T.M., J. Mol. Model. 2012, 18, 3523. "Consequences of One-Electron Oxidation and One-Electron Reduction for 4-Aminopyrimidine – DFT Studies."

  20. 128. Raczyńska E.D., Comput. Theor. Chem. 2011, 971, 38. "On the Basicity and pi-Electron Delocalization of Hexaazabenzene N6 - Quantum-Chemical Studies."

  21. 127. Raczyńska E.D., Hallmann M., Duczmal K., J. Iran. Chem. Res. 2011, 4, 113. "Tautomeric Equilibria for Ionized Oxamic Acid – Inhibitor of LDH."

  22. 126. Raczyńska E.D., Stępniewski T.M., Kolczyńska K., J. Mol. Model. 2011, 17, 3229. "Consequences of One-Electron Oxidation and One-Electron Reduction for Aniline."

  23. 125. Raczyńska E.D., Hallmann M., Duczmal K., Comput. Theor. Chem. 2011, 964, 310. "Quantum-Chemical Studies of Amide-Iminol Tautomerism for Inhibitor of Lactate Dehydrogenase: Oxamic Acid."

  24. 124. Raczyńska E.D., Kolczyńska K., Stępniewski T.M., Comput. Theor. Chem. 2011, 963, 176. "Tautomeric Preferences and pi-Electron Delocalization for Redox Forms of Phenol."

  25. 123. Raczyńska E.D., Makowski M., Gal J.-F., Maria P.-C., J. Mass Spectrom. 2010, 45, 762. "Change of the Favored Routes of EI MS Fragmentation when Proceeding from N1,N1-Dimethyl-N2-arylformamidines to 1,1,3,3-Tetraalkyl-2-arylguanidines: Substituent Eff

  26. 122. Raczyńska E.D., Makowski M., Szeląg M., Kamińska B., Zientara K., J. Mol. Struct. (THEOCHEM) 2010, 947, 83. "Importance of CH Tautomers in the Tautomeric Mixture of Uric Acid."

  27. 121. Raczyńska E.D., Hallmann M., Kolczyńska K., Stępniewski T.M., Symmetry 2010, 2, 1485. "On the Harmonic Oscillator Model of Electron Delocalization (HOMED) Index and Its Application to Heteroatomic pi-Electron Systems."

  28. 120. Raczyńska E.D., Kamińska B., J. Phys. Org. Chem. 2010, 23, 828. "Prototropy and pi-Electron Delocalization for Purine and Its Radical Ions – DFT Studies."

  29. 119. Raczyńska E.D., Kamińska B., Szeląg M., Anal. Bioanal. Electrochem. 2009, 1, 83. "Influence of One-Electron Oxidation and One-Electron Reduction on the Tautomeric Preferences for Purine."

  30. 118. Raczyńska E.D., Gal J.-F., Maria P.-C., Szeląg M., Croat. Chim. Acta 2009, 83, 87. "Proton Transfer Chemistry in the Gas Phase. Is a Spontaneous Neutralization Reaction a Myth or Reality?"

  31. 117. Raczyńska E.D., Zientara K., Kolczyńska K., Stępniewski T.M., Pol. J. Chem. 2009, 83, 821. "Change of Prototropic Equilibria for Uracil when Going from Neutral Molecule to Charged Radicals. Quantum-Chemical Studies in the Gas Phase."

  32. 116. Raczyńska E.D., Zientara K., Stępniewski T.M., Kolczyńska K. Collect. Czech. Chem. Commun. 2009, 74, 57. "Stability, Polarity, Intramolecular Interactions and pi-Electron Delocalization for all Eighteen Tautomers Rotamers of Uracil. DFT Studies in th

  33. 115. Raczyńska E.D., Zientara K., Kolczyńska K., Stępniewski T., J. Mol. Struct. (THEOCHEM) 2009, 894, 103. "Change of Tautomeric Equilibria, Intramolecular Interactions and pi-Electron Delocalization when Going from Phenol to Uracil."

  34. 114. Raczyńska E.D., Makowski M., Hallmann M., Duczmal K. J. Phys. Org. Chem. 2009, 22, 77. "Computational (MP2 and DFT) Modeling of the Substrate/Inhibitor Interaction with the LDH Active Pocket in the Gas Phase and Aqueous Solution: Bimolecular Charged

  35. 113. Raczyńska E.D., Duczmal K., Hallmann M. Trends Org. Chem. 2008, 12, 85. "Theoretical Studies on the Non-Covalent Interactions of the Substrate (Pyruvate) and Inhibitor (Oxamate) of Lactate Dehydrogenase (LDH) with Compounds modeling the Active Pocket

  36. 112. Szeląg M., Raczyńska E.D. Trends Org. Chem. 2008, 12, 19. "Tautomeric Equilibria for Uric Acid."

  37. 111. Raczyńska E.D., Hallmann M., Duczmal K. J. Iran. Chem. Res. 2008, 1, 57. "Change of the Tautomeric Preference for Radical Cation of Pyruvic Acid. DFT Studies in the Gas Phase."

  38. 110. Raczyńska E.D., Hallmann M., Duczmal K. Pol. J. Chem. 2008, 82, 1077. "Consequences of Covalent and Non-Covalent Interactions on Conformational Preferences and *-Electron Delocalization for the Substrate (Pyruvate) and Inhibitor (Oxamate) of Lactate

  39. 109. Raczyńska E.D., Gal J.-F., Maria P.-C., Zientara K., Szeląg M. Anal. Bioanal. Chem. 2007, 389, 1365. "Application of FT-ICR-MS for the Study of Proton-Transfer Reactions Involving Biomolecules."

  40. 108. Raczyńska E.D., Duczmal K., Hallmann M. Pol. J. Chem. 2007, 81, 1655. "Tautomeric Equilibria and pi-Electron Delocalization for the Substrate (Pyruvate) and Inhibitor (Oxamate) of Lactate Dehydrogenase - DFT Studies."

  41. 107. Hallmann M., Raczyńska E.D., Gal J.-F., Maria P.-C. Int. J. Mass Spectrom. 2007, 267, 315. "Gas-Phase Lithium Cation Basicity of Histamine and Its Agonist 2-(*-Aminoethyl)-pyridine. Experimental (FT-ICR-MS) and Theoretical Studies (DFT) of Chelation

  42. 106. Duczmal K., Hallmann M., Raczyńska E.D., Gal J.-F., Maria P.-C. Pol. J. Chem. 2007, 81, 1011. "Comparison of the Proton (H+) and Alkali Metal Ion (Li+, Na+ and K+) Binding Affinities of Pyruvate and Oxamate Anions in the Gas Phase. Quantum-Chemical S

  43. 105. Ośmiałowski B., Raczyńska E.D., Krygowski T.M. J. Org. Chem. 2006, 71, 3727. "Tautomeric Equilibria and Pi Electron Delocalization for Some Monohydroxyarenes - Quantum Chemical Studies."

  44. 104. Raczyńska E.D., Duczmal K., Darowska M. Vibr. Spectrosc. 2005, 39, 37. "Experimental (FT-IR) and Theoretical (DFT-IR) Studies of Keto-Enol Tautomerism in Pyruvic Acid."

  45. 103. Raczyńska E.D., Kosińska W., Ośmiałowski B., Gawinecki R. Chem. Rev. 2005, 105, 3561. "Tautomeric Equilibria in Relation to Pi-Electron Delocalization."

  46. 102. Raczyńska E.D., Krygowski T.M., Zachara J.E., Ośmiałowski B., Gawinecki R. J. Phys. Org. Chem. 2005, 18, 892. "Tautomeric equilibria, H-bonding and *-electron delocalization in o-nitrosophenol. A B3LYP/6-311+G(2df,2p) study".

  47. 101. Raczyńska E.D., Rudka T., Darowska M., Dąbkowska I., Gal J.-F., Maria P.-C. J. Phys. Org. Chem. 2005, 18, 856. "Experimental (FT-ICR) and theoretical (DFT) estimation of the basis site preference for the bidentate molecule 2-(*-aminoethyl)-pyridine -

  48. 100. Rode J.E., Raczyńska E.D., Górnicka E., Dobrowolski J.Cz. J. Mol. Struct. 2005, 749, 51. "Low Inversion Energy Barrier of Cytisine NH Group - an Explanation for the FT-IR Bands Splitting".

  49. 99. Ośmiałowski B., Raczyńska E., Gawinecki R. Pol. J. Chem. 2005, 79, 1093. "Tautomeric quilibria (1,5-Proton Shift) in Simple Heteroconjugated Systems HX*A=B*C=Y X=A*B=C*YH in Relation to * Electron Delocalization".

  50. 98. Raczyńska E.D. Pol. J. Chem. 2005, 79, 1003. "On n-* Electron Distribution in Simple Acyclic Tetrad and Pentad Tautomeric Systems".

  51. 97. Raczyńska E.D. Pol. J. Chem. 2005, 79, 749. "On n-* Electron Distribution in Simple Keto-Enol Tautomeric Systems: H3C-C(R)=O H2C=C(R)-OH and RH2C-CH=O RHC=CH-OH."

  52. 96. Raczyńska E.D., Duczmal K., Darowska M. Pol. J. Chem. 2005, 79, 689. "Keto-Enol Tautomerism in Pyruvic Acid -Theoretical (HF, MP2 and DFT in the Vacuo) Studies."

  53. 95. Raczyńska E.D., Makowski M., Górnicka E., Darowska M. Int. J. Molecul. Struct. 2005, 6, 143. "Ab Initio Studies on the Preferred Site of Protonation in Cytisine in the Gas Phase and Water."

  54. 94. Duczmal K., Darowska M., Raczyńska E.D. Vibr. Spectrosc. 2005, 37, 77. "Spectral (DFT-IR, FT-IR and UV) Similarities and Differences Between Substrate (Pyruvate) and Inhibitor (Oxamate) of Lactic Dehydrogenase (LDH)."

  55. 93. Górnicka E., Rode J.E., Raczyńska E.D., Dasiewicz B., Dobrowolski J.C. Vibr. Spectrosc. 2004, 36, 105. "Experimental (FT-IR and Raman) and Theoretical (DFT) Studies on the Vibrational Dynamics in Cytisine".

  56. 92. Raczyńska E.D., Darowska M., Dąbkowska I., Decouzon M., Gal J.-F., Maria P.-C., Dubin Poliart C. J. Org. Chem. 2004, 69, 4023. "Experimental and Theoretical Evidence of Basic Site Preference in Polyfunctional Superbasic Amidinazine: N1,N1-Dimethyl-N2-

  57. 91. Raczyńska E.D., Darowska M., Makowski M. Trends Org. Chem. 2003, 9, 167-183. "Tautomeric Preferences in Histamine and its Model 4(5)-Alkylimidazoles."

  58. 90. Raczyńska E.D., Darowska M., Rudka T., Pol. J. Chem. 2003, 77, 1529-1546. "Theoretical (DFT in Vacuo) Studies on the Structure of 2-(*-Aminoethyl)-pyridine - an Agonist of the Histamine H1 Receptor. Comparison with Experimental (FT-IR in Apolar Solven

  59. 89. Raczyńska E.D., Darowska M., Cyrański M.K., Makowski M., Rudka T., Gal J.-F., Maria P.-C., J. Phys. Org. Chem. 2003, 16, 783-796. Ab Initio Study of Tautomerism and of Basicity Center Preferences in Histamine, from Gas Phase to Solution - Comparison w

  60. 88. Darowska M., Rudka T., Raczyńska E.D., Chem. Pap. 2003, 57, 216-223. "FTIR Studies of Isomers and Hydrogen-Bonded Associates with the Amidine Moiety in Apolar Solvents."

  61. 87. Raczyńska E.D., Cyrański M.K., Gutowski M., Rak J., Gal J.-F., Maria P.-C., Darowska M., Duczmal K., J. Phys. Org. Chem. 2003, 16, 91-106. "Consequences of Proton Transfer in Guanidine."

  62. 86. Graton J., Besseau F., Berthelot M., Raczyńska E.D., Laurence C., Can. J. Chem., 2002, 80, 1375. "L'echelle pKHB de basicite de liaison hydrogene des amines tertiaires aliphatiques."

  63. 85. Raczyńska E.D., Darowska M., Rudka T. Górnicka E., Curr. Topics. Anal. Chem., 2002, 3, 125-134. "Acid-Base Equilibria in Polyfunctional Compounds."

  64. 84. Raczyńska E.D., Gal J.-F., Maria P-C., Curr. Topics. Anal. Chem., 2002, 3, 115-123. "'Neutralization' Reaction in the Gas Phase (present and Future)."

  65. 83. Raczyńska E.D., Woźniak K., Dolecka E., Darowska M., J. Phys. Org. Chem. 2002, 15, 706. "Superbasic Properties of the S=N Functional Group."

  66. 82. Darowska M., Raczyńska E.D., Pol. J. Chem. 2002, 76, 1027. "Variations of Tautomeric Preferences in Histamine Monocation - Ab initio Studies for "Essential" and "Scorpio" Conformations from the Gas Phase to Aqueous Solution."

  67. 81. Górnicka E., Raczyńska E.D., Talanta 2002, 54, 609. "FR-IR spectroscopic, AM1 and PM3 computational studies of conformation of natural products: cytisine."

  68. 80. Raczyńska E.D., Rudka T., Darowska M., J. Mol. Struct. (Theochem) 2001, 574, 221. "Influence of Rotational Isomerism on Tautomerism and Basicity of Histamine and its Model 4(5)-Alkylimidazoles - AM1 Studies for Isolated Molecules."

  69. 79. Raczyńska E.D., Darowska M., Rudka T., Makowski M. J. Phys. Org. Chem. 2001, 14, 770. "Tautomerism of Neutral and Monoprotonated Histamine - a Comparison of Semiempirical and Ab Initio Quantum Mechanical Predictions for 'Essential' and 'Scorpio' Confo

  70. 78. Górnicka E., Makowski M., Darowska M., Raczyńska E.D. Pol. J. Chem. 2001, 75, 1483. "Conformational Preference in Isolated Neutral Cytisine."

  71. 77. Gal J.F., Maria P.-C., Raczyńska E.D. J. Mass Spectrom. 2001, 36, 699. "Thermochemical Aspects of Proton Transfer in the Gas Phase."

  72. 76. Makowski M., Raczyńska E.D., Chmurzyński L. J. Phys. Chem. A 2001, 105, 869. "Ab Initio Study of Possible and Preferred Basic Site(s) in Polyfunctional N1,N1-Dimethyl-N2-cyanoformamidine."

  73. 75. Raczyńska E.D., Decouzon M., Gal J.-F., Maria P.-C., Gelbard G., Vielfaure-Joly F. J. Phys. Org. Chem. 2001, 14, 25. "Gas-Phase Structural (Internal) Effects in Strong Organic Nitrogen Bases."

  74. 74. Raczyńska E.D., Cyrański M.K., Darowska M., Rudka T. Targets in Heterocyclic Chemistry 2000, 4, 327. "Structure and Proton-Transfer Reactions in Histamine."

  75. 73. Raczyńska E.D., Maria P.-C., Gal J.-F., Decouzon M. J. Mass Spectrom. 2000, 35, 1222. "Mass Spectral Fragmentation of Simple Benzamidines."

  76. 72. Raczyńska E.D., Pol. J. Chem. 2000, 74, 1283. "Tautomeric Preference in Isolated 2- and 4-Hydroxypyridines: Theoretical (AM1) Analysis of Structural (Internal) Effects."

  77. 71. Raczyńska E.D., Decouzon M., Gal J.-F., Maria P.-C., Taft R.W., Anvia F. J. Org. Chem. 2000, 65, 4635. "Gas-Phase Basicity of Polyfunctional Amidinazines: Experimental Evidence of Preferred Site(s) of Protonation."

  78. 70. Raczyńska E.D., Wiad. Chem., 2000, 54, 67. "Wewnętrzna solwatacja a reakcje przeniesienia protonu w fazie gazowej dla związków azotowych".

  79. 69. Woźniak K., Raczyńska E.D., Korybut-Daszkiewicz B., Israel J. Chem., 1999, 39, 245. "On Consequence of Protonation of Diamines in the Gas Phase and the Solid State".

  80. 68. Raczyńska E.D., Pol. J. Chem., 1999, 73, 1863. Prototropic Tautomerism in 2- and 4-Hydroxypyridines. Halogen Substituent Effects in the Gas Phase Calculated by Semiempirical (AM1) Method".

  81. 67. Raczyńska E.D., Woźniak K., Trends in Org. Chem., 1998, 7, 159 (I 2000). "Consequences of 'Internal Solvation' in the Gas Phase".

  82. 66. Raczyńska E.D., Decouzon M., Gal J.-F., Maria P.-C., Woźniak K., Kurg R., Carins S.N., Trends in Org. Chem., 1998, 7, 95 (1999). "Superbases and Superacids in the Gas Phase".

  83. 65. Raczyńska E.D., Gawinecki R., Trends in Org. Chem., 1998, 7, 85 (1999). "Prototropic Tautomerism in Amidines".

  84. 64. Raczyńska E.D., Che Z., J. Mass Spectrom., 1999, 34, 978. "Mass Spectral Fragmentation of Tautomerizing N,N'-Diphenylbenzamidines".

  85. 63. Graton, J., Laurence C., Berthelot M., Le Questel J.-Y., Besseau F., Raczyńska E.D., J. Chem. Soc., Perkin Trans. 2, 1999, 997. "Hydrogen-Bond Basicity pKHB Scale of Aliphatic Primary Amines".

  86. 62. Raczyńska E.D., J. Chem. Res. (S), 1999, 116. "Comparison of Thermodynamic Hydrogen Bonding, Brönsted and Gas-phase Basicity with Spectroscopic Hydrogen Bonding Basicity of N1N1-Dimethylformamidines. Similarities and Differences in Substituent Effects

  87. 61. Raczyńska E.D., Atual. Fís-Quím. Org., 1998, 169. "Influence of intramolecular hydrogen bonding on proton-transfer reactions in the gas phase".

  88. 60. Raczyńska E.D., J. Chem. Res. (S), 1998, 704. "Influence of Substituent on Tautomeric Equilibrium Constant in 5(6)-Substituted Benzimidazoles in the Gas Phase".

  89. 59. Raczyńska E.D., Decouzon, M., Gal J.-F., Maria, P.-C., Taft, R.W., J. Mass Spectrom., 1998, 33,

  90. 1029. "Mass Spectral Fragmentation of N1,N1-Dimethyl-N2-azinylformamidines".

  91. 58. Raczyńska E.D., Mishima M., Mustanir, Bull Soc. Chim. Jpn., 1998, 71, 2175. "Experimental and Theoretical Studies of the Possible and Preferred Site of Protonation in Polyfunctional N1,N1-Dimethyl-N2-benzoylformamidine in the Gas Phase".

  92. 57. Raczyńska E.D., Pol. J. Chem., 1998, 72, 1215. "Comparison of Hydrogen Bonding with Gas-Phase and Brönsted Basicity of N1,N1-Dimethylformamidines. Substituent Effects".

  93. 56. Raczyńska E.D., Wiad. Chem., 1998, 52, 385. "Zastosowanie spektrometrii masowej cyklotronowego rezonansu jonowego do badania reakcji przeniesienia protonu w fazie gazowej (Application of Ion Cyclotron Resonance Mass Spectrometry to the Study of Proton

  94. 55. Raczyńska E.D., Taft R.W., Pol. J. Chem., 1998, 72, 1054. "Prediction of Tautomeric Equilibrium Constant in the Gas Phase for Simple Compounds Containing the Amidine Group".

  95. 54. Raczyńska E.D., Maria P.-C., Gal J.-F., Analyst, 1998, 123, 621. "Comparison of Theoretical (AM1) and Experimental (Fourier Transform Ion Cyklotron Resonance) Basicity of N1,N1,N2-Trimethylamidines in the Gas Phase".

  96. 53. Raczyńska E.D., J. Mol. Struct. (Theochem), 1998, 427, 87. "Theoretical Studies of the Influence of Rotational Isomerism on the Basicity of 2,2'-bipyridine in the Gas Phase. Comparison with other Biazines and Bidentate Nitrogen Ligands with Flexible C

  97. 52. Gawinecki R., Raczyńska E.D., Rasała D., Styrcz S, Tetrahedron, 1997, 53, 17211."Tautomeric and Conformational Preferences in Nitraminopyridines: Comparison of Theoretical and Experimental Data".

  98. 51. Raczyńska E.D., Anal. Chim. Acta, 1997, 348, 431. "Application of Semiempirical Method (AM1) to the Study of Tautomeric Equilibria in the Gas Phase for Simple Compounds Containing the Amidine Group: 4(5)-Substituted Imidazoles".

  99. 50. Raczyńska E.D., Taft R.W., Bull. Chem. Soc. Jpn., 1997, 70, 1297. "Semiempirical (AM1) Studies of Possible and Prefered Site(s) of Protonation in the Gas Phase for Polyfunctional Nitrogen Bases: N1,N1-Dimethyl-N2-azinylformamidines".

  100. 49. Raczyńska E.D., J. Chem. Res. (S), 1997, 214. "Substituent Constants of the N=CH-NMe2 Group and their Application to the Prediction of the Basicity of Each Site in Bifunctional Amidines".

  101. 48. Raczyńska E.D., Wiad. Chem., 1996, 50, 625. "Zastosowania równania Hammetta do reakcji przeniesienia protonu dla związków wielofunkcyjnych i tautomeryzujących" ("Application of the Hammett Equation to Proton Transfer Reactions for Polyfunctional and T

  102. 47. Taft R.W., Raczyńska E.D., Maria P.-C., Leito I., Lewandowski W., Kurg R., Gal J.-F., Decouzon M., Anvia F., Fresenius J. Anal. Chem., 1996, 355, 412. "Application of Experimental (FT-ICR) and Theoretical (AM1) Methods to the Study of Proton-Transfer

  103. 46. Raczyńska E.D., Pol. J. Chem., 1996, 70, 795. "Semiempirical (AM1) Studies of Gas-Phase Basicity and Acidity of Simple Cyclic Nitrogen Compounds: Imidazole, 1- 2- and 4(5)-Methylimidazoles. Structural Effects: Isomerism and Tautomerism."

  104. 45. Taft R.W., Raczyńska E.D., Maria P.-C., Leito I., Gal J.-F., Decouzon M., Drapała T., Anvia F., Pol. J. Chem., 1995, 69, 41. "Experimental (FT-ICR) vs. Calculated (AM1) Gas-Phase Basicities of N1,N1-Dimethyl-N2-phenylformamidines. Substituent and Solv

  105. 44. Gal J.-F. Leito I., Maria P.-C., Raczyńska E.D., Taft R.W., Anvia F., J. Chim. Phys., 1995, 92, 22. "Semiempirical (AM1) calculations of the proton affinities for N1,N1-dimethyl-N2-formamidines: success and faillures in the description of substituent

  106. 43. Taft R.W., Raczyńska E.D., Maria P.-C., Gal J.-F., Decouzon M., Anvia F., Organic Reactivity, 1995, 29, 105. "Experimental (FT-ICR) vs. Theoretical (AM1) Gas-Phase Basicities of N1,N1-Dimethyl-N2-phenylformamidines."

  107. 42. Raczyńska E.D., Maria P.-C., Gal J.-F., Decouzon M., Organic Reactivity, 1995, 29, 67. "Amidines and Guanidines as Superbases in the Gas Phase."

  108. 41. Raczyńska E.D., Maria P.-C., Gal J.-F., Decouzon M., J. Phys. Org. Chem., 1994, 7, 725. "Superbases in the Gas-Phase. Part II. Further Extention of the Basicity Scale Using Acyclic and Cyclic Guanidines."

  109. 40. Raczyńska E.D., Laurence C., Berthelot M., Analyst, 1994, 119, 683. "Application of Infrared Spectrometry to the Study of Tautomeric Equilibria and Hydrogen Bonding Basicity of Medical and Biochemical Agents: N,N'-Disubstituted Amidines."

  110. 39. Decouzon M., Gal J.-F., Maria P.-C., Raczyńska E.D., Rapid Commun. Mass Spectrom., 1993, 7, 599. "Superbases in the Gas Phase: Amidine and Guanidine Derivatives with Proton Affinities Larger than 1000 kJ mol-1."

  111. 38. Raczyńska E.D., Pol. J. Chem., 1993, 67, 1145. "On Correlation of the pKa Values of Trisubstituted Amidines with the pKa Values of the Corresponding Primary Amines."

  112. 37. Raczyńska E.D., Drapała T., J. Chem. Research, 1993 (S) 54; (M) 301. "Application of Correlation Analysis to the Study of Acid-Base Equilibrium Constants for Amphiprotic Organic Systems: N2-Hydroxyphenyl-N1,N1-dimethylformamidines."

  113. 36.Gal J.-F., Maria P.-C., Raczyńska E.D., 2-nd CRDEC Meeeting on Solute/Solvent Interactions, Aberdeen, Md; ERDEC, 95 (1993). "Superbases in the Gas Phase: Amidine and Guanidine Derivatives with Proton Affinities beyond 1000 kJ mol-1."

  114. 35. Raczyńska E.D., Laurence C., Berthelot M., Can. J. Chem., 1992, 70, 2203. "Basicite de liaison hydrogene de formamidines substituees sur l'azote imino."

  115. 34. Raczyńska E.D., Maria P.-C., Gal J.-F., Decouzon M., J. Org. Chem., 1992, 57, 5730. "Gas-Phase Basicity of N1,N1-Dimethylformamidines: Substituent Polarizability and Field Effects, and Comparison with Brönsted Basicity in Solution."

  116. 33. Raczyńska E.D., Laurence C., Analyst, 1992, 117, 375. "Application of IR Spectroscopy to Study of Tautomerism, Conformational and Configurational Isomerism in Medical and Biochemical Agents: N,N'-Disubstituted Amidines."

  117. 32. Raczyńska E.D., Collect. Czech. Chem. Commun., 1992, 57, 113. "Substituent Effects on the Basicity of ortho-, meta- and para-substituted N1,N1-Dimethyl-N2-phenylformamidines in Ethanol and in Water."

  118. 31. Krygowski T.M., Anulewicz R., Raczyńska E.D., Laurence C., J. Phys. Org. Chem., 1991, 4, 689. "Structural Studies of 1,3-Di(N,N-dimethylformamidyl)-2-cyanoguanidine. The case of a srtongly Lewis Basic Nitrogen Atom in the Cyano Group VIII. Crystallogr

  119. 30. Decouzon M., Gal J.-F., Maria P.-C., Raczyńska E.D., Org. Mass. Spectrom., 1991, 26, 1127. "Mass Spectral Fragmentation of N1,N1-Dimethyl-N2-alkylformamidines."

  120. 29. Anulewicz R., Krygowski T.M., Raczyńska E.D., Laurence C., J. Phys. Org. Chem., 1991, 4, 331. "Crystallographic Studies of Intra-and Inter-Molecular Interactions. Part VI. Crystal and Molecular Structure of N,N-Dimethyl-N'-phenylsulfonylformamidine. E

  121. 28. Decouzon M., Gal J.-F., Maria P.-C., Raczyńska E.D., J. Org. Chem., 1991, 56, 3669. "Gas Phase Basicity of N1,N1-Dimethyl-N2-alkylformamidines. Polaryzability Effects."

  122. 27. Raczyńska E.D., J. Chem. Research, 1991 (S) 90; (M) 763. "Influence of Substituents at the Imino Nitrogen Atom on the pKa Values of N1,N1-Dimethylformamidines."

  123. 26. Raczyńska E.D., Laurence C., J. Chem. Research, 1990 (S) 338. "Conformational Isomerism and Cyclic Dimerization of N,N'-Diphenylformamidine. Infrared Spectroscopic Evidence."

  124. 25. Laurence C., Berthelot M., Raczyńska E.D., Le Questel J.-Y., Duguay G., Hudhomme P., J. Chem. Research, 1990 (S) 250. "Hydrogen-Bond Basicity of Cyanamide, Amide, Thioamide and Sulfonamide Iminologues."

  125. 24. Borgarello M., Houriet R., Raczyńska E.D., Drapała T., J. Org. Chem., 1990, 55, 38. "Gas Phase Basicity of N1,N1-Dimethyl-N2-phenylformamidines."

  126. 23. Raczyńska E.D., J. Chem. Soc., Perkin Trans. 2, 1989, 1789. "Prediction of Tautomeric Equilibria for N,N',N"-Trisubstituted, N,N'-Disubstituted and N-Monosubstituted Guanidines."

  127. 22. Raczyńska E.D., Laurence C., J. Chem. Research, 1989 (S) 148. "Hydrogen Bonding Basicity of Acetamidines and Benzamidines."

  128. 21. Exner O., Budešínský M., Hnyk D., Všetecka V., Raczyńska E.D., J. Mol. Struct., 1988, 178, 147. "Dipole Moments of Amidines and Electron Distribution within their Functional Group."

  129. 20. Raczyńska E.D., J. Chem. Research, 1988 (S) 258. "Prediction of Tautomeric Equilibria for N,N,N',N"-Tetrasubstituted and N,N,N'-Trisubstituted Guanidines."

  130. 19. Raczyńska E.D., Laurence C., Nicolet P., J. Chem. Soc., Perkin Trans. 2, 1988, 1491. "Hydrogen Bonding Basicity of Amidines."

  131. 18. Dolecka E., Raczyńska E.D., Drapała T., J. Chem. Soc., Perkin Trans. 2, 1988, 257. "Retention Indices and Basicity of N1,N1-Dimethyl-N2-phenylformamidines, ortho Substituent Effects."

  132. 17. Raczyńska E.D., J. Chem. Research, 1987 (S) 410. "E-Z Isomerisation in N2-(2-Hydroxyphenyl)-N1,N1-Dimethylformamidine."

  133. 16. Raczyńska E.D., J. Chem. Research, 1987 (S) 20. "Thermodynamics of Proton Ionisation of N1,N1-Dimethylacetamidinium Ions."

  134. 15. Raczyńska E.D., J. Chem. Soc., Perkin Trans. 2, 1987, 1117. "Structure-Basicity General Relations for Acetamidines."

  135. 14. Raczyńska E.D., J. Chem. Research, 1986 (S) 256. "Structure-Basicity General Relations for Formamidines."

  136. 13. Raczyńska E.D., J. Chem. Soc., Perkin Trans. 2, 1986, 1189. "Prediction of Tautomeric Equilibria for N-Arylamidines."

  137. 12. Oszczapowicz J., Krawczyk W., Osek J., Raczyńska E., Pol. J. Chem., 1986, 60, 157. "Amidines. Part XXII. Basicity of N1,N1-Dimethylbenzamidines, p-Chlorobenzamidines and p-Methylbenzamidines."

  138. 11. Oszczapowicz J., Raczyńska E., Osek J., Magn. Reson. Chem., 1986, 24, 9. "Amidines. Part XVII. Substituent Induced Chemical Shifts in 13C NMR Spectra of N2-Phenyl-Formamidines, Acetamidines and Guanidines."

  139. 10. Raczyńska E., Oszczapowicz J., Wojtkowska M., Pol. J. Chem., 1985, 59, 945. "Correlation of Basicity of N2-Phenylformamidines with Basicity of Corresponding Secondary Amines."

  140. 9. Oszczapowicz J., Krawczyk W., Osek J., Raczyńska E., J. Chem. Research, 1985 (S) 384; (M) 3975. "Amidines. Part 21. 1H NMR Spectra of Trisubstituted Amidines."

  141. 8. Oszczapowicz J., Raczyńska E., Tetrahedron, 1985, 22, 5175. "Amidines. Part XVIII. Tautomeric Equilibria and pKa Values of N,N'-Disubstituted Amidines. Substituent Effects."

  142. 7. Oszczapowicz J., Raczyńska E., Barecka I., Pol. J. Chem., 1985, 59, 946. "Amidines. Part XVI. Prediction of pKa Values for Trisubstituted Benzamidines."

  143. 6. Raczyńska E., Oszczapowicz J., Walczak M., J. Chem. Soc., Perkin Trans. 2, 1985, 1087. "Amidines. Part XV. Influence of Substitution at Imino and Amino Nitrogen Atoms on pKa Values of N1-Methyl-N1,N2-diphenylacetamidines."

  144. 5. Oszczapowicz J., Raczyńska E., J. Chem. Soc., Perkin Trans. 2, 1984, 1643. "Amidines. Part XIII. Influence of Substitution at Imino Nitrogen Atom on pKa Values of N1,N1-Dimethylacetamidines."

  145. 4. Oszczapowicz J., Raczyńska E., Pawlik T., Pol. J. Chem., 1984, 58, 117. "Amidines. Part XII. Basicity of N2-Substituted Benzamidines in Water-Ethanol Solutions."

  146. 3. Oszczapowicz J., Raczyńska E., Pol. J. Chem., 1983, 57, 419. "Amidines. Part XI. Basicity of N',N'-Dimethylformamidines."

  147. 2. Oszczapowicz J., Raczyńska E., Orliński R., Pol. J. Chem., 1981, 55, 2031. "Amidines. Part IX. Influence of Substitution at Imino and Amino Nitrogen Atoms on the Basicity of N,N'-Diphenylbenzamidines."

  148. 1. Raczyńska E., Chemia Leków, 1980, 17. "Czynność biologiczna amidyn."