Abstract
▪ Abstract Proton-coupled electron transfer (PCET) is an important mechanism for charge transfer in a wide variety of systems including biology- and materials-oriented venues. We review several areas where the transfer of an electron and proton is tightly coupled and discuss model systems that can provide an experimental basis for a test of PCET theory. In a PCET reaction, the electron and proton may transfer consecutively (ET/PT) or concertedly (ETPT). The distinction between these processes is formulated, and rate-constant expressions for the two reaction channels are presented. Methods for the evaluation of these rate constants are discussed that are based on dielectric continuum theory. Electron donor hydrogen-bonded-interface electron acceptor systems displaying PCET reactivity are presented, and the rate-constant expressions corresponding to the ETPT and ET/PT channels for several model reaction complexes are evaluated.
Keywords
Proton-coupled electron transferElectron transferProtonReaction rate constantElectronReactivity (psychology)Atomic physicsChemical physicsChemistryDielectricPhysicsPhysical chemistryQuantum mechanicsKinetics
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Publication Info
- Year
- 1998
- Type
- review
- Volume
- 49
- Issue
- 1
- Pages
- 337-369
- Citations
- 839
- Access
- Closed
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Cite This
Robert I. Cukier,
Daniel G. Nocera
(1998).
PROTON-COUPLED ELECTRON TRANSFER.
Annual Review of Physical Chemistry
, 49
(1)
, 337-369.
https://doi.org/10.1146/annurev.physchem.49.1.337
Identifiers
- DOI
- 10.1146/annurev.physchem.49.1.337