期刊
NATURE COMMUNICATIONS
卷 6, 期 -, 页码 -出版社
NATURE PUBLISHING GROUP
DOI: 10.1038/ncomms6865
关键词
-
资金
- European Research Foundation [FP7-PEOPLE-2010-ERG-268445, ERC-2009-StG-239910]
- MICINN [CTQ2009-08464]
- Generalitat de Catalunya
- US National Institutes of Health [GM38767]
- INNPLANTA project [INP-2011-0059-PCT-420000-ACT1]
The non-haem iron complex alpha-[Fe-II(CF3SO3)(2)(mcp)] (mcp = (N,N'-dimethyl-N,N'-bis (2-pyridylmethyl)-1,2-cis-diaminocyclohexane) reacts with Ce-IV to oxidize water to O-2, representing an iron-based functional model for the oxygen evolving complex of photosystem II. Here we trap an intermediate, characterized by cryospray ionization high resolution mass spectrometry and resonance Raman spectroscopy, and formulated as [(mcp)Fe-IV(O) (mu-O)Ce-IV(NO3)(3)](+), the first example of a well-characterized inner-sphere complex to be formed in cerium(IV)-mediated water oxidation. The identification of this reactive Fe-IV-O-Ce-IV adduct may open new pathways to validate mechanistic notions of an analogous Mn-V-O-Ca-II unit in the oxygen evolving complex that is responsible for carrying out the key O-O bond forming step.
作者
我是这篇论文的作者
点击您的名字以认领此论文并将其添加到您的个人资料中。
推荐
暂无数据