✦ LIBER ✦

Substituent and solvent effects on electronic absorption spectra and thermal isomerization of push-pull-substituted cis-azobenzenes

✍ Scribed by Shunsuke Kobayashi; Hiroshi Yokoyama; Hirotake Kamei

Publisher: Elsevier Science
Year: 1987
Tongue: English
Weight: 496 KB
Volume: 138
Category: Article
ISSN: 0009-2614
DOI: 10.1016/0009-2614(87)80394-9

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✦ Synopsis

The electronic absorption spectra of push-pull-substituted cis-azobenzenes were measured using a newly devised spectroscopic method. The solvent effect on the absorption spectra of cis-4-anilino-4'nitroazobenzene is interpreted in terms of a structural change involving the N-N-C angle. The results support an inversion mechanism for cis-trans isomenzation, rather than a rotational one.