Uranium(III) Complexes with Bulky Aryloxide Ligands Featuring Metal-Arene Interactions and Their Reactivity Toward Nitrous Oxide

被引:52
作者
Franke, Sebastian M. [1 ]
Tran, Ba L. [2 ,3 ]
Heinemann, Frank W. [1 ]
Hieringer, Wolfgang [1 ]
Mindiola, Daniel J. [2 ,3 ]
Meyer, Karsten [1 ]
机构
[1] Univ Erlangen Nurnberg, Dept Chem & Pharm, D-91058 Erlangen, Bavaria, Germany
[2] Indiana Univ, Dept Chem, Bloomington, IN 47405 USA
[3] Indiana Univ, Ctr Mol Struct, Bloomington, IN 47405 USA
关键词
VALENT ORGANOURANIUM COMPLEXES; CARBON-MONOXIDE; BASIS-SETS; 4-ELECTRON REDUCTION; ELECTRONIC-STRUCTURE; ACTIVATION; ENERGY; APPROXIMATION; CONVERSION; CHEMISTRY;
D O I
10.1021/ic401532j
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
We report the synthesis and use of an easy-to-prepare, bulky, and robust aryloxide ligand starting from inexpensive precursor materials. Based on this aryloxide ligand, two reactive, coordinatively unsaturated U(III) complexes were prepared that are masked by a metal-arene interaction via delta-backbonding. Depending on solvent and uranium starting material, both a tetrahydrofuran (THF)-bound and Lewis-base-free U(III) precursor can easily be prepared on the multigram scale. The reaction of these trivalent uranium species with nitrous oxide, N2O, was studied and an X-ray diffraction (XRD) study on single crystals of the product revealed the formation of a five-coordinate U(V) oxo complex with two different molecular geometries, namely, square pyramidal and trigonal bipyramidal.
引用
收藏
页码:10552 / 10558
页数:7
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