EXCITED-STATE BEHAVIOR OF TWISTED OLEFINS WITH RIGIDLY LINKED AND ROTATIONALLY FREE CHROMOPHORES

Authors
STRATI G PIOTROWIAK P
Citation
G. Strati et P. Piotrowiak, EXCITED-STATE BEHAVIOR OF TWISTED OLEFINS WITH RIGIDLY LINKED AND ROTATIONALLY FREE CHROMOPHORES, Journal of photochemistry and photobiology. A, Chemistry, 105(2-3), 1997, pp. 255-259
Citations number
21
Categorie Soggetti
Chemistry Physical
Journal title
Journal of photochemistry and photobiology. A, Chemistry → ACNP
ISSN journal
10106030
Volume
105
Issue
2-3
Year of publication
1997
Pages
255 - 259
Database
ISI
SICI code
1010-6030(1997)105:2-3<255:EBOTOW>2.0.ZU;2-V
Abstract
The stilbene analogues tetraphenylethylene and bi-4H-cyclopenta[def]ph enanthren-4-ylidene (BPH) prove to be useful models for studying photo isomerization reactions in olefins with freely rotating and rigid chro mophores. In the former, the rotation of the phenyl rings follows a co mplex isomerization pathway from one of the two isoenergetic enantiome rs to the 90 degrees twisted conformer. The isomerization pathway for BPH is much simpler since only idealized rotation about the double bon d is possible. (C) 1997 Elsevier Science S.A.