Quantum Effects in Electron-Transfer Reactions

P. Siders, R. A. Marcus

Research output: Contribution to journalArticlepeer-review

203 Scopus citations


Classical, semiclassical, and quantum theories of outer-sphere electron-transfer reactions in polar media are discussed. For each, the Franck-Condon overlap factors for the hexaamminecobalt, hexaaquoiron and hexaammineruthenium self-exchange rates and for the Fe2+-Ru(bpy)33+ cross-reaction are evaluated and compared. The quantum effect on the rates is relatively unimportant in the “normal” AG° region. Direct sum and saddle-point evaluations of the quantum Franck-Condon factors are made and compared.

Original languageEnglish (US)
Pages (from-to)741-747
Number of pages7
JournalJournal of the American Chemical Society
Issue number4
StatePublished - Feb 1981

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