Journal
POLYHEDRON
Volume 84, Issue -, Pages 103-110Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.poly.2014.06.041
Keywords
Bimetallic complexes; NHC; Carbon dioxide activation; Nickel; Metal-arene interactions
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Funding
- California Institute of Technology
- NSF CAREER Grant [CHE-1151918]
- Sandia Campus Executive Fellowship
- NSF Chemistry Research Instrumentation award [CHE-0639094]
- NIH Award [RR027690]
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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. (C) 2014 Elsevier Ltd. All rights reserved.
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