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Laser photolysis study of chloranil triplet exciplexes with stilbene

  • Physical Chemistry
  • Thermodynamics
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Bulletin of the Russian Academy of Sciences, Division of chemical science Aims and scope

Abstract

Absorption spectra and decay kinetics of the polar triplet exciplexes (contact radical-ion pairs) formed during quenching of the chloranil triplet state by trans- or cis-stilbenes in benzene with added acetonitrile and methanol, have been studied by laser flash photolysis. The exciplexes include cation-radicals of stilbene dimers, which are deactivated by reverse electron transfer within 10–50 nsec. The dynamics of the intercombination electron transfer and the exciplex dissociation into ion-radicals were determined. The isomerization of stilbene via triplet exciplex formation was not observed.

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Additional information

N. N. Semenov Institute of Chemical Physics, Russian Academy of Sciences, Moscow 117977. Translated from Izvestiya Akademii Nauk, Seriya Khimicheskaya, No. 3, pp. 572–576, March, 1992.

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Levin, P.P., Kuz'min, V.A. Laser photolysis study of chloranil triplet exciplexes with stilbene. Russ Chem Bull 41, 451–453 (1992). https://doi.org/10.1007/BF00863061

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  • DOI: https://doi.org/10.1007/BF00863061

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