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Heterolysis of Dihydrogen by Silver Alkoxides and Fluorides |
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| Authors: | Brandon K Tate Jenna T Nguyen Dr John Bacsa Prof Joseph P Sadighi |
| Institution: | 1. School of Chemistry and Biochemistry, Georgia Institute of Technology, Atlanta, GA 30332 (USA);2. Department of Chemistry, Washington and Jefferson College, Washington, PA 15301 (USA);3. Department of Chemistry, X‐Ray Crystallography Center, Emory University, Atlanta, GA 30322 (USA) |
| Abstract: | Alkoxide‐bridged disilver cations react with dihydrogen to form hydride‐bridged cations, releasing free alcohol. Hydrogenolysis of neutral silver fluorides affords hydride‐bridged disilver cations as their bifluoride salts. These reactions proceed most efficiently when the supporting ligands are expanded N‐heterocyclic carbenes (NHCs) derived from 6‐ and 7‐membered cyclic amidinium salts. Kinetics studies show that silver fluoride hydrogenolysis is first‐order in both silver and dihydrogen. |
| Keywords: | fluoride N‐heterocyclic carbenes hydride hydrogen activation silver |