Chemistry: A European Journal 2015-07-06

Heterolysis of Dihydrogen by Silver Alkoxides and Fluorides.

Brandon K Tate, Jenna T Nguyen, John Bacsa, Joseph P Sadighi

Index: Chemistry 21 , 10160-9, (2015)

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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. © 2015 WILEY-VCH Verlag GmbH & Co. KGaA, Weinheim.