Selective photoproduction of O2 from the Mn4O4 cubane core:: A structural and functional model for the photosynthetic water-oxidizing complex

被引：0

作者：

Yagi, M ^{[1
]}

Wolf, KV ^{[1
]}

Baesjou, PJ ^{[1
]}

Bernasek, SL ^{[1
]}

Dismukes, GC ^{[1
]}

机构：

[1] Princeton Univ, Dept Chem, Princeton, NJ 08544 USA

来源：

ANGEWANDTE CHEMIE-INTERNATIONAL EDITION | 2001年 / 40卷 / 15期

关键词：

cluster compounds; manganese; oxygen; photosynthesis; water oxidation;

D O I：

10.1002/1521-3773(20010803)40:15<2925::AID-ANIE2925>3.0.CO;2-7

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Cores for thought! A new [Mn4O4]6+ cubane core complex (L6Mn4O4) with six facially bridging phosphinate chelate ligands (L-=(MePh)2PO2-) was synthesized. Photo-excitation releases molecular O2 by intramolecular coupling of two core oxygen atoms and selective rearrangement to a [Mn4O2]6+ butterfly core ([L5Mn4O2]+; see scheme). Thus the Mn4O4 cubane core exhibits unique reactivity in O2 evolution which may account for its presence in the photosynthetic enzyme.

引用

页码：2925 / 2928

页数：4

共 25 条

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