Proton-Coupled Electron Transfer

被引：1394

作者：

Weinberg, David R. ^{[2
,3
]}

Gagliardi, Christopher J. ^{[2
]}

Hull, Jonathan F. ^{[2
]}

Murphy, Christine Fecenko ^{[1
]}

Kent, Caleb A. ^{[2
]}

Westlake, Brittany C. ^{[4
]}

Paul, Amit ^{[2
]}

Ess, Daniel H. ^{[2
]}

McCafferty, Dewey Granville ^{[1
]}

Meyer, Thomas J. ^{[2
]}

机构：

[1] Duke Univ, Dept Chem, Levine Sci Res Ctr B219, Durham, NC 27708 USA

[2] Univ N Carolina, Dept Chem, Chapel Hill, NC 27599 USA

[3] Colorado Mesa Univ, Dept Phys & Environm Sci, Grand Junction, CO 81501 USA

[4] Amer Chem Soc, Washington, DC 20036 USA

来源：

CHEMICAL REVIEWS | 2012年 / 112卷 / 07期

基金：

美国国家科学基金会; 美国国家卫生研究院;

关键词：

CYTOCHROME-C-OXIDASE; GREEN FLUORESCENT PROTEIN; OXYGEN-EVOLVING COMPLEX; HYDROGEN-ATOM TRANSFER; EXCITED-STATE DYNAMICS; REDOX-ACTIVE TYROSINE; GLASSY-CARBON ELECTRODE; ASYMMETRIC TRANSFER HYDROGENATION; ELECTROCHEMICAL CONCERTED PROTON; PHOTOSYNTHETIC WATER OXIDATION;

D O I：

10.1021/cr200177j

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Proton-coupled electron transfer (PCET) has a major role in chemistry and biology and its implications for catalysis and energy conversion. Photosynthesis is a spectacular example of PCET in action with the transfer of 24 e- and 24 H+ driven by at least 48 photons. In PCET half reactions, variations in pH influence driving force. Both HAT (H-atom transfer) and EPT (electron-proton transfer) are elementary steps by which PCET reactions can occur. In H-atom transfer (HAT), both the transferring electron and proton come from the same bond in one of the reactants. Multiple Site Electron-Proton Transfer (MS-EPT) is microscopically more complex than electron or proton transfer. It shares with electron transfer requirements for medium and intramolecular reorganization but with the additional complexity of a coupled proton transfer. PCET plays a critical role in many enzymatic pathways that control life such as photosynthesis, respiration, and DNA repair.

引用

页码：4016 / 4093

页数：78

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