Time-resolved EPR study on reorganization energies for charge recombination reactions in the systems involving hydrogen bonding

Tomoaki Yago, Yasuhiro Kobori, Kimio Akiyama, Shozo Tero-Kubota

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

Hydrogen bonding effects on reorganization energies (λ) in the photoinduced electron donor-acceptor system of duroquinone (DQ)-1,2,4-trimethoxybenzene (TMB) in benzonitrile have been investigated by time-resolved EPR and cyclic voltammetry measurements. The solvent reorganization energies (λ S ) determined for the radical ion pair systems involving the hydrogen-bonded complexes are larger by ∼0.2 eV than those calculated from the Marcus continuum dielectric model. The present results suggest that dissociation of the DQ anion-alcohol hydrogen-bonded complex results in the new component of λ S for the charge recombination reaction in polar solvents.

Original languageEnglish
Pages (from-to)49-54
Number of pages6
JournalChemical Physics Letters
Volume369
Issue number1-2
DOIs
Publication statusPublished - 2003 Feb 7

ASJC Scopus subject areas

  • Physics and Astronomy(all)
  • Physical and Theoretical Chemistry

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