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Dinuclear Iron-Imido Complexes with N-Heterocyclic Carbene Ligation: Synthesis, Structure, and Redox Reactivity
其他题名铁氮杂环卡宾亚胺络合物的合成、结构和氧化还原性质
Zhang Q(张强); Xiang L(向丽); Deng L(邓亮)
2012
发表期刊Organometallics
ISSN0276-7333
卷号31期号:12页码:4537-4543
摘要The introduction of an N-heterocyclic carbene ligand (NHC) to iron imido chemistry has led to the successful preparation of a series of iron imido complexes featuring rhombic [Fe(mu(2)-NDipp)(2)Fe](n) (n = 0, 1+, 2+) cores. The dimeric iron(II) imido complex [(IPr2Me2)Fe(mu(2)-NDipp),Fe(IPr2Me2)] (1) was prepared by protonolysis of the ferrous precursor [(IPr2Me2)Fe(Mes)(2)] with the aniline derivative DippNH(2). Complex 1 has a rhombic [Fe(mu(2)-NDipp)2Fe] core in which the iron sites adopt trigonal-planar geometry and have a formal Fe(II) oxidation state. Oxidation of 1 with 1 or 2 equiv of [Cp2Fe][BF4] resulted in the formation of the dinuclear iron(III) complex [F(IPr2Me2)Fe(mu(2)-NDipp)(2)Fe(IPr2Me2)F] (2) or [F(IPr2Me2)Fe(p(2)NDipp)(2)Fe(IPr2Me2)(BF4)] (3), respectively. However, the reaction of 1 with benzyl chloride could give either the diferric complex [Cl(IPr2Me2)Fe(p(2)-NDipp)(2)Fe(IPr2Me2)Cl] (4) or the rnixed-valent complex [(IPr2Me2)Fe(gamma(2)-NDipp)(2)Fe(IPr2Me2)Cl] (5), depending on the reaction stoichiometry. Complex 5 is also accessible upon the reaction of 1 with 4. Complexes 1-5 have been fully characterized by H-1 NMR, UV vis spectroscopy, single-crystal X-ray diffraction studies, and elemental analysis. The successful preparation of these complexes revealed the potential of the iron imido rhomb for mediating electron transfer.
学科领域金属有机化学
部门归属中科院上海有机化学研究所
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收录类别SCI
语种英语
WOS记录号WOS:000305588000019
引用统计
文献类型期刊论文
条目标识符http://ir.sioc.ac.cn/handle/331003/27957
专题金属有机化学国家重点实验室
通讯作者Deng L(邓亮)
推荐引用方式
GB/T 7714
Zhang Q,Xiang L,Deng L. Dinuclear Iron-Imido Complexes with N-Heterocyclic Carbene Ligation: Synthesis, Structure, and Redox Reactivity[J]. Organometallics,2012,31(12):4537-4543.
APA 张强,向丽,&邓亮.(2012).Dinuclear Iron-Imido Complexes with N-Heterocyclic Carbene Ligation: Synthesis, Structure, and Redox Reactivity.Organometallics,31(12),4537-4543.
MLA 张强,et al."Dinuclear Iron-Imido Complexes with N-Heterocyclic Carbene Ligation: Synthesis, Structure, and Redox Reactivity".Organometallics 31.12(2012):4537-4543.
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