Conversion of Fe-NH2 to Fe-N2 with release of NH3

被引：114

作者：

Anderson, John S. ^{[1
]}

Moret, Marc-Etienne ^{[1
]}

Peters, Jonas C. ^{[1
]}

机构：

[1] CALTECH, Div Chem & Chem Engn, Pasadena, CA 91125 USA

来源：

JOURNAL OF THE AMERICAN CHEMICAL SOCIETY | 2013年 / 135卷 / 02期

基金：

瑞士国家科学基金会;

关键词：

COMPLEX; REACTIVITY; CARBON;

D O I：

10.1021/ja307714m

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Tris(phosphine)borane ligated Fe(I) centers featuring N2H4, NH3, NH2, and OH ligands are described. Conversion of Fe-NH2 to Fe-NH3+ by the addition of acid, and subsequent reductive release of NH3 to generate Fe-N-2, is demonstrated. This sequence models the final steps of proposed Fe-mediated nitrogen fixation pathways. The five-coordinate trigonal bipyramidal complexes described are unusual in that they adopt S = 3/2 ground states and are prepared from a four-coordinate, S = 3/2 trigonal pyramidal precursor.

引用

页码：534 / 537

页数：4

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