Polymorphism and C=N-N=C Conformational Isomers of Azines: X-ray Crystal and Ab Initio Structures of Two Rotational Isomers of Methyl (para-Tolyl) Ketone Azine
Conjugative effects are not significant for the conformation of diaryl-substituted azines such as 1 - whether within the azine unit or between the aryl substituents and the azine or imino units. This was the conclusion of studies of X-ray crystal structures and quantum chemical calculations.
G. S. Chen et al., "Polymorphism and C=N-N=C Conformational Isomers of Azines: X-ray Crystal and Ab Initio Structures of Two Rotational Isomers of Methyl (para-Tolyl) Ketone Azine," Angewandte Chemie (International Edition in English), vol. 33, no. 10, pp. 1081-1084, Wiley-VCH Verlag, Jun 1994.
The definitive version is available at https://doi.org/10.1002/anie.199410811
Petroleum Research Fund of the American Chemical Society
Research Board of the University of Missouri
National Science Foundation
International Standard Serial Number (ISSN)
Article - Journal
© 1994 Wiley-VCH Verlag, All rights reserved.