A Stable "End-On" Iron(III)-Hydroperoxo Complex in Water Derived from a Multi-Iron(II)-Substituted Polyoxometalate and Molecular Oxygen

被引:39
作者
Barats, Delina [1 ]
Leitus, Gregory [2 ]
Popovitz-Biro, Ronit [2 ]
Shimon, Linda J. W. [2 ]
Neumann, Ronny [1 ]
机构
[1] Weizmann Inst Sci, Dept Organ Chem, IL-76100 Rehovot, Israel
[2] Weizmann Inst Sci, Chem Res Support Unit, IL-76100 Rehovot, Israel
基金
以色列科学基金会;
关键词
iron; O-O activation; oxygen; peroxo ligands; polyoxometalates;
D O I
10.1002/anie.200803966
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
(Figure presented) Head over EELS: Reaction of O2 with a hexa-iron(II)-substituted polyoxometalate in water yields a polyoxometalate with "end-on" hydroperoxo groups, {FeIII-O2H}, at the terminal positions. The hydroperoxo moiety, stabilized by hydrogen bonding with water, is unusual for its long O-O bond and nearly linear Fe-O-O bond angle. Electron energy-loss spectroscopy (EELS) is used to determine the oxidation state of iron. © 2008 Wiley-VCH Verlag GmbH & Co. KGaA.
引用
收藏
页码:9908 / 9912
页数:5
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