Emily Y Tsui1, Theodor Agapie1. 1. Division of Chemistry and Chemical Engineering, California Institute of Technology, 1200 E. California Blvd. MC 127-72 Pasadena, CA 91125.
Abstract
A binucleating bis(N-heterocyclic carbene) ligand was designed as a means to coordinate and proximally constrain two transition metal centers. Using an imidazopyridine-based NHC afforded a framework structurally related to previously reported para-terphenyl diphosphines. Bimetallic copper, cobalt, and nickel complexes supported by this framework were synthesized and structurally characterized. Strong interactions between the metal centers and the central arene were observed in all nickel complexes. Dinickel(0) complexes of this ligand framework were found to react with CO2 to form a dicarbonyl-bridged dinickel(0) product, demonstrating facile CO2 reduction.
A binucleating bis(N-heterocyclic carbene) ligand was designed as a means to n class="Chemical">coordinate and proximally constrain two transition metal centers. Using an imidazopyridine-based NHC afforded a framework structurally related to previously reported para-terphenyl diphosphines. Bimetallic copper, cobalt, and nickelcomplexes supported by this framework were synthesized and structurally characterized. Strong interactions between the metal centers and the central arene were observed in all nickelcomplexes. Dinickel(0) complexes of this ligand framework were found to react with CO2 to form a dicarbonyl-bridgeddinickel(0) product, demonstrating facile CO2 reduction.
Authors: Robert Beck; Manar Shoshani; Jonathan Krasinkiewicz; Jillian A Hatnean; Samuel A Johnson Journal: Dalton Trans Date: 2012-11-20 Impact factor: 4.390
Authors: Bettina Horn; Christian Limberg; Christian Herwig; Michael Feist; Stefan Mebs Journal: Chem Commun (Camb) Date: 2012-07-12 Impact factor: 6.222