Thu, Oct. 17, 2019, 12:30pm
Frick Laboratory A57
Host: Paul Chirik
New Mechanisms for Cooperative (and Uncooperative) Reactions: Stoichiometric and Catalytic Processes Featuring Metal-Silicon Bonds
Compared with ubiquitous metal-carbon bonds, transition metal-silicon linkages have received much less attention. Beyond their critical role in catalytic hydrosilylation, late-metal silyl and silylene complexes offer intriguing possibilities for cooperative reactivity due the complementary electronic properties of the metal/silicon units and the ease with which Si accommodates coordination numbers beyond four. This presentation will demonstrate several new mechanisms for small-molecule transformation engendered by metal-silicon bonds, including distinct redox-cooperative reductions of CO2 and ethylene at a cobalt silylene.