Organometallic Electron-Reservoir Complexes. Concepts and Applications
Organometallic Electron-Reservoir Complexes. Concepts and Applications
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有机金属电子库络合物。
DOI：
10.1246/bcsj.80.1658
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发表时间：
2007
影响因子：
4
通讯作者：
D. Astruc
中科院分区：
文献类型：
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作者：
D. Astruc
19-electron复合物(Fe我(η5 -C5R5)(η6芳烃)](R = H,芳烃= C 6我6,1,3,5-tBu 3 C 6 H 3; R =我,芳烃= C 6我6 C 6等5 H)热稳定和作为强大的单电子还原剂在各种化学和催化电子转换过程详细综述(原型:[菲我(η5 - C 5 H 5)(η6 - C 6我6)])。它们是电子储存器，因为它们的氧化还原电位非常负，它们形成了一个氧化还原系统，两种氧化还原形式都是稳定的。从这个意义上说，它们是格林氧化还原试剂，因为氧化后的形式在使用后被回收，甚至经常被催化使用。对称地，17电子配合物[Fe III (η 5 -C5R5)(η 6 -C6Me6)][SbCl 6] 2是最强的有机金属单电子氧化剂，其氧化还原电位比其等电子类似物二茂铁高1 V，是电子空穴的储集层。
The 19-electron complexes [Fe I (η 5 -C5R5)(η 6 -arene)] (R = H, arene = C 6 Me 6 , 1,3,5-tBu 3 C 6 H 3 ; R = Me, arene = C 6 Me 6 , C 6 Et 5 H) are thermally stable and serve as strong single-electron reductant in a variety of stoichiometric and catalytic electron-transfer processes that are detailed in this review (prototype: [Fe I (η 5 -C 5 H 5 )(η 6 -C 6 Me 6 )]). They are electron-reservoirs because their redox potential is very negative and they form a redox system for which both redox forms are stable. In this sense, they are Green redox reagents, since the oxidized form is recovered after use and is even frequently catalytically used. Symmetrically, the 17-electron complex [Fe III (η 5 -C5R5)(η 6 -C6Me6)][SbCl 6 ] 2 , the strongest organometallic single-electron oxidant with a redox potential 1 V more positive than that of its isoelectronic ferrocenium analog, is a reservoir of electron hole.