Cage escape yields and direct observation of intermediates in photoinduced electron-transfer reactions of cis- and trans-stilbene

Frederick D. Lewis, Ruth E. Dykstra, Ian Gould, Samir Farid

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Abstract

The cation radicals of cis- and trans-stilbene have been generated in solution under conditions where they do not interconvert by means of pulsed-laser-induced electron transfer from biphenyl to singlet 9,10-dicyanoanthracene followed by secondary electron transfer from the stilbenes to the biphenyl cation radical. The cis-stilbene cation radical is found to be configurationally stable on the microsecond time scale. Cage escape quantum yields have been measured for the photogenerated ion pairs of 9,10-dicyanoanthracene with cis-stilbene (0.134) and trans-stilbene (0.254), and these values have been used to analyze the quantum yields for electron-transfer-induced isomerization and oxygenation of the stilbenes.

Original languageEnglish (US)
Pages (from-to)7042-7043
Number of pages2
JournalJournal of Physical Chemistry
Volume92
Issue number25
Publication statusPublished - 1988
Externally publishedYes

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ASJC Scopus subject areas

  • Physical and Theoretical Chemistry

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