Vibrational effects in outer-sphere electron-transfer reactions in polar media

Shlomo Efrima*, Mordechai Bixon

*Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

138 Scopus citations

Abstract

The effect of vibrations in the inner-sphere of reacting molecules on the outer-sphere electron-transfer is investigated. We use a classical model of the solvent and a quantum two-state electron subsystem. In addition, we include a quantum mechanical treatment of the vibrational modes of the inner-sphere. A general derivation of the rate constant is given. Using a continuous model for the solvent a usable form of the rate constant is obtained. The various effects of the vibrations on the rate constant are investigated. Considerable effects are noticed for very exothermic and endothermic reactions. Some relevant experimental evidence is discussed.

Original languageEnglish
Pages (from-to)447-460
Number of pages14
JournalChemical Physics
Volume13
Issue number4
DOIs
StatePublished - 5 Apr 1976

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