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Collect. Czech. Chem. Commun. 1999, 64, 1797-1806

Crystal and Molecular Structure of N-(3,5-Dichloro-2-hydroxybenzylidene)- and N-(2-Hydroxy-3-methoxybenzylidene)aniline Oxides. Delocalisation in the Spacer of the Intramolecular H-Bond and the Problem of Quasi-Aromaticity

Tadeusz M. Krygowskia,*, Beata Stępieńa, Romana Anulewicz-Ostrowskaa, Michał K. Cyrańskia,b, Sławomir J. Grabowskic, Zbigniew Rozwadowskid and Teresa Dziembowskad

a Department of Chemistry, University of Warsaw, L. Pasteura 1, 02-093 Warsaw, Poland
b Interdisciplinary Centre for Mathematical and Computational Modelling, Pawińskiego 5a, 02-106 Warsaw, Poland
c Institute of Chemistry, University in Białystok, Al. J. Pilsudskiego 11/4, Białystok, Poland
d Institute of Fundamental Chemistry, Technical University of Szczecin, Al. Piastów 42, 71-065 Szczecin, Poland

Crossref Cited-by Linking

  • Krygowski Tadeusz M., Bankiewicz Barbara, Czarnocki Zbigniew, Palusiak Marcin: Quasi-aromaticity—what does it mean?. Tetrahedron 2015, 71, 4895. <>
  • Zborowski Krzysztof, Proniewicz Leonard M.: Theoretical studies on aromaticity of selected hydroxypyrones and their cations and anions. Part 2. Electron delocalisation in the OCCO group. J. Phys. Org. Chem. 2008, 21, 207. <>
  • Krygowski Tadeusz M., Zachara Joanna E., Moszyński Robert: Theoretical Study of Changes in π-Electron Delocalization in the Analogues of an ortho-Hydroxy Schiff Base When the Proton Is Replaced with Li+ or BeH+. J. Chem. Inf. Model. 2005, 45, 1837. <>
  • Sobczyk Lucjan, Grabowski Sławomir Janusz, Krygowski Tadeusz Marek: Interrelation between H-Bond and Pi-Electron Delocalization. Chem. Rev. 2005, 105, 3513. <>
  • Raczyńska Ewa Daniela, Kosińska Wanda, Ośmiałowski Borys, Gawinecki Ryszard: Tautomeric Equilibria in Relation to Pi-Electron Delocalization. Chem. Rev. 2005, 105, 3561. <>
  • Dziembowska T., Rozwadowski Z., Majewski E., Ambroziak K.: Deuterium isotope effects on13C NMR chemical shifts of some ?-(2-hydroxyaryl)-N-phenylnitrones (Schiff baseN-oxides). Magn. Reson. Chem. 2001, 39, 484. <>
  • Krygowski T.M., Cyrañski M.K., Czarnocki Z., Häfelinger G., Katritzky Alan R.: Aromaticity: a Theoretical Concept of Immense Practical Importance. Tetrahedron 2000, 56, 1783. <>