Rapid catalytic water oxidation by a single site, Ru carbene catalyst

被引：58

作者：

Chen, Zuofeng ^{[1
]}

Concepcion, Javier J. ^{[1
]}

Meyer, Thomas J. ^{[1
]}

机构：

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

来源：

DALTON TRANSACTIONS | 2011年 / 40卷 / 15期

关键词：

COUPLED ELECTRON-TRANSFER; RUTHENIUM COMPLEX; PHOTOSYSTEM-II; DIMER;

D O I：

10.1039/c0dt01178a

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

Compared to earlier single site catalysts, greatly enhanced rates of electrocatalytic water oxidation by the Ru carbene catalyst [Ru(tpy)(Mebim-py)(OH2)](2+) (tpy = 2,2': 6',2 ''-terpyridine; Mebim-py = 3-methyl-1-pyridylbenzimidazol-2-ylidene) have been observed. The mechanism appears to be the same with proton coupled electron transfer (PCET) activation toRu(V)=O3+ followed by O-O coupling and further oxidation. An important factor in the enhanced reactivity of the carbene complex may come from increased driving force for the O-O bond forming step.

引用

页码：3789 / 3792

页数：4

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