A New Tripodal Ligand System with Steric and Electronic Modularity for Uranium Coordination Chemistry

被引：79

作者：

Bart, Suzanne C. ^{[1
]}

Heinemann, Frank W. ^{[1
]}

Anthon, Christian ^{[1
]}

Hauser, Christina ^{[1
]}

Meyer, Karsten ^{[1
]}

机构：

[1] Univ Erlangen Nurnberg, Dept Chem & Pharm, D-91058 Erlangen, Germany

来源：

INORGANIC CHEMISTRY | 2009年 / 48卷 / 19期

关键词：

BIS(IMINO)PYRIDINE IRON; REDUCTIVE REACTIVITY; MOLECULAR-STRUCTURE; HYDRIDE COMPLEXES; CRYSTAL-STRUCTURE; CARBON-MONOXIDE; METAL-COMPLEXES; APPROXIMATION; ACTIVATION; ENERGY;

D O I：

10.1021/ic9012697

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The synthesis of a potentially redox active tripodal ligand containing a tris(aryloxide) functionalized mesitylene anchor, (((ArOH)-Ar-tBu)(3)mes) (1), and its metalation with low-valent uranium to form [(((ArO)-Ar-tBu)(3)mes)U] (1-U) is reported. The results from characterization by X-ray crystallography, spectroscopic studies, and computational analysis, as well as initial reactivity studies, support a +3 uranium oxidation state. Comparison to the previously synthesized complex, [(((ArO)-Ar-tBu)(3)tacn)U] (2-U), featuring the redox-innocent triazacyclononane anchor reveals that changing the anchor from the flexible triazacyclononane to a rigid mesityl fragment increases the structural flexibility of the aryloxide substituents in complexes of 1. The synthesis and crystal structures of uranium(IV) amide complexes of 1-U and 2-U are discussed.

引用

页码：9419 / 9426

页数：8

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