Wed, 18 Jan 2023
Events, Seminar Series

Prof. Morris Bullock

Pacific Northwest National Laboratory

Stalking and Capturing Elusive Monomeric Copper Hydrides

Wednesday, January 18, 2023
ASB10900 @ 3:30 p.m.

Host: Dr. Jeffrey Warren



Copper hydrides were first reported in 1844; their value as catalysts for organic reactions has significantly expanded in the last two decades. Copper hydrides with NHC (NHC = N-heterocyclic carbene) ligands typically exist as dimers, [(NHC)Cu(m-H)]2. The kinetics of insertion of organic substrates into the Cu-H bond are determined by the electronic properties of the substrates. Conversion of the dimer to a monomeric species or insertion into the Cu-H bond can be rate-determining. Remote ligand modification can have a large effect on the dimer-monomer equilibrium, even when substituents are several bonds away from the copper. Destabilization of the [(NHC)Cu(m-H)]2 dimer relative to the (NHC)Cu-H monomer enables the isolation of rarely observed Cu-H monomers. These highly reactive monomeric complexes insert tri-substituted alkenes into the Cu-H bond.

Presenting Author’ Biography

Morris Bullock is the director of the Center for Molecular Electrocatalysis, an Energy Frontier Research Center. He is a Laboratory Fellow in the Physical and Computational Sciences Division. From 1985-2006, he was in the Chemistry Department at Brookhaven National Laboratory (Long Island, New York).

His selected awards include the following:

  • Friedrich Wilhelm Bessel Award (2015)
  • William H. Kiekhofer Distinguished Teaching Award (2013)
  • Eli Lilly Grantee Award (2010)
  • Camille Dreyfus Teacher-Scholar Award (2010)
  • Amgen Young Investigator Award (2009)
  • Alfred P. Sloan Research Fellowship (2009)
  • Cottrell Scholar Award (2008)
  • Beckman Young Investigator Award (2008)
  • NSF CAREER Award (2007)