Issue 8, 2013

A dinuclear silver hydride and an umpolung reaction of CO2

Abstract

A triangular [Ag2H]+ core is stabilised by the N-heterocyclic carbene (NHC) ligand 1,3-bis(2,6-diisopropylphenyl)imidazolin-2-ylidene (SIDipp). The X-ray crystal structure of this complex reveals a short silver–silver distance, and 109Ag 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.

Graphical abstract: A dinuclear silver hydride and an umpolung reaction of CO2

Supplementary files

Article information

Article type
Edge Article
Submitted
03 Apr 2013
Accepted
07 May 2013
First published
07 May 2013

Chem. Sci., 2013,4, 3068-3074

A dinuclear silver hydride and an umpolung reaction of CO2

B. K. Tate, C. M. Wyss, J. Bacsa, K. Kluge, L. Gelbaum and J. P. Sadighi, Chem. Sci., 2013, 4, 3068 DOI: 10.1039/C3SC50896J

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