ISOMERIZATION BEHAVIOR OF HALOSTILBENE RADICAL CATIONS IN THE EXCITED-STATES - 2-COLOR PHOTOCHEMISTRY OF STILBENE DERIVATIVES

Authors
KURIYAMA Y HASHIMOTO F TSUCHIYA M SAKURAGI H TOKUMARU K
Citation
Y. Kuriyama et al., ISOMERIZATION BEHAVIOR OF HALOSTILBENE RADICAL CATIONS IN THE EXCITED-STATES - 2-COLOR PHOTOCHEMISTRY OF STILBENE DERIVATIVES, Chemistry Letters, (8), 1994, pp. 1371-1374
Citations number
25
Categorie Soggetti
Chemistry
Journal title
Chemistry Letters → ACNP
ISSN journal
03667022
Issue
8
Year of publication
1994
Pages
1371 - 1374
Database
ISI
SICI code
0366-7022(1994):8<1371:IBOHRC>2.0.ZU;2-X
Abstract
Two-color laser excitation of (Z)-4,4'-dichlorostilbene and (Z)-4,4'-d ifluorostilbene with 425- and 500-nm laser pulses in acetonitrile cont aining 9,10-dicyanoanthracene and biphenyl exhibited a spectral change indicating a rapid conversion of the Z-radical cations in the excited state to the corresponding E-radical cations in a one-way fashion. Th e efficiencies of isomerization were determined and the isomerization energy surfaces were discussed.