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Structures of tris(donor)-tris(acceptor)-substituted benzenes, 5. Organization and reorganization of the π system in a symmetric tris(alkylamino)trinitrobenzene: balance between cyanine and quinoid structures

✍ Scribed by Jens Wolff, J. ;Irngartinger, Hermann ;Gredel, Frank ;Bolocan, Ion


Publisher
Wiley (John Wiley & Sons)
Year
1993
Tongue
English
Weight
499 KB
Volume
126
Category
Article
ISSN
0009-2940

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✦ Synopsis


Conformational analysis / Benzene, donor-acceptor-substituted / Benzene ring, distortion of J Cyanine concept

The rc system of la may adopt markedly different electronic structures with concomitant strong conformational preferences for the six-membered ring. Neutral la can exist either in a quinoid boat form or as a twist boat, formally resulting