publication . Article . 2003

Lifetimes of partial charge transfer exciplexes of 9-cyanophenanthrene and 9-cyanoanthracene

Michael G. Kuzmin; E. V. Dolotova; Eric Vauthey; Irina V. Soboleva; Olivier Nicolet; D. N. Dogadkin;
Open Access
  • Published: 01 Jan 2003 Journal: Chemical Physics Letters, volume 380, pages 729-735 (issn: 0009-2614, Copyright policy)
  • Publisher: Elsevier BV
  • Country: Switzerland
Abstract
The fluorescence decays of several exciplexes with partial charge transfer have been investigated in solvents of various polarity. The measured lifetimes are found to be in reasonable agreement with the activation enthalpy and entropy of exciplex decay obtained earlier from the temperature dependence of the exciplex emission quantum yields. For exciplexes with 9-cyanophenanthrene substantial contribution of the higher local excited state into the exciplex electronic structure is found and borrowed intensity effect enhances the exciplex emission rate constants.
Subjects
arXiv: Physics::Atomic and Molecular Clusters
free text keywords: Physical and Theoretical Chemistry, General Physics and Astronomy, Chemistry, Photochemistry, Electronic structure, Molecular physics, Quantum yield, Excimer, Reaction rate constant, Solvent effects, Partial charge, Excited state, Enthalpy, ddc:540
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