A dinuclear silver hydride and an umpolung reaction of CO2

被引：53
|
作者：
Tate, Brandon K. [1 ]
Wyss, Chelsea M. [1 ]
Bacsa, John [2 ]
Kluge, Kelly [2 ]
Gelbaum, Leslie [1 ]
Sadighi, Joseph P. [1 ]
机构：
[1] Georgia Inst Technol, Sch Chem & Biochem, Atlanta, GA 30332 USA
[2] Emory Univ, Xray Crystallog Ctr, Atlanta, GA 30322 USA
来源：
CHEMICAL SCIENCE | 2013年 / 4卷 / 08期
关键词：
HOMOGENEOUS CATALYTIC ACTIVATION; N-HETEROCYCLIC CARBENE; GAS-PHASE SYNTHESIS; RAY CRYSTAL-STRUCTURE; CARBON-DIOXIDE; MOLECULAR-HYDROGEN; ARTIFICIAL PHOTOSYNTHESIS; COORDINATION CHEMISTRY; CONJUGATE REDUCTION; SOLUTION BEHAVIOR;
D O I：
10.1039/c3sc50896j
中图分类号：
O6 [化学];
学科分类号：
0703 ;
摘要：
A triangular [Ag2H](+) core is stabilised by the N-heterocyclic carbene (NHC) ligand 1,3-bis(2,6-diisopropyl-phenyl)imidazolin-2-ylidene (SIDipp). The X-ray crystal structure of this complex reveals a short silver-silver distance, and Ag-109 NMR spectroscopy shows substantial coupling between the silver nuclei. The complex persists for hours in solution after exposure to air and moisture. When carbon dioxide is added in the form of a Lewis-basic NHC adduct, a rapid reaction results in hydride transfer to form a bis(NHC) silver(I) formate.
引用
收藏
页码：3068 / 3074
页数：7
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