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The Possible Role of Proton‐Coupled Electron Transfer (PCET) in Water Oxidation by Photosystem II
Abstract
All higher life forms use oxygen and respiration as their primary energy source. The oxygen comes from water by solar‐energy conversion in photosynthetic membranes. In green plants, light absorption in photosystem II (PSII) drives electron‐transfer activation of the oxygen‐evolving complex (OEC). The mechanism of water oxidation by the OEC has long been a subject of great interest to biologists and chemists. With the availability of new molecular‐level protein structures from X‐ray crystallography and EXAFS, as well as the accumulated results from numerous experiments and theoretical studies, it is possible to suggest how water may be oxidized at the OEC. An integrated sequence of light‐driven reactions that exploit coupled electron–proton transfer (EPT) could be the key to water oxidation. When these reactions are combined with long‐range proton transfer (by sequential local proton transfers), it may be possible to view the OEC as an intricate structure that is “wired for protons”.
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Cited by
The Mechanism of Water Oxidation: From Electrolysis via Homogeneous to Biological Catalysis
Dau, H., Limberg, C., Reier, T., Risch, M., Roggan, S., & Strasser, P. (2010) · ChemCatChem · doi:10.1002/cctc.201000126 · Cited by 1,783
Proton-coupled electron transfer
Huynh, M. H. V., & Meyer, T. J. (2007) · Chemical Reviews · doi:10.1021/cr0500030 · Cited by 1,659
Self-citationFe-Based Electrocatalysts for Oxygen Evolution Reaction: Progress and Perspectives
Feng, C., Faheem, M. B., Fu, J., Xiao, Y., Li, C., & Li, Y. (2020) · ACS Catalysis · doi:10.1021/acscatal.9b05445 · Cited by 587
Metadata
- Authors
- Meyer, T. J., Huynh, M. H. V., & Thorp, H. H.
- Venue
- Angewandte Chemie International Edition
- Publisher
- Wiley
- Published
- 2007-07-02
- Volume
- 46
- Issue
- 28
- Pages
- 5284-5304
- ISSN
- 1433-7851 (ISSN-L)
- 1521-3773
- OpenAlex
- W2121243460
- Cited by
- 552
- References
- 0
- FWCI
- 11.73
- Type
- journal article
- Language
- en
- Open access
- closed
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- CoChat. (2026). Citation check: The Possible Role of Proton‐Coupled Electron Transfer (PCET) in Water Oxidation by Photosystem II. https://app.cochat.ai/papers/10.1002/anie.200600917
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- Meyer, T. J., Huynh, M. H. V., & Thorp, H. H. (2007). The Possible Role of Proton‐Coupled Electron Transfer (PCET) in Water Oxidation by Photosystem II. Angewandte Chemie International Edition. https://doi.org/10.1002/anie.200600917
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