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Electrocatalytic hydrogen evolution by cobalt complexes of macrocyclic imine ligands

Hu, Xile and Brunschwig, Bruce B. and Lewis, Nathan S. and Peters, Jonas C. (2006) Electrocatalytic hydrogen evolution by cobalt complexes of macrocyclic imine ligands. Abstracts of Papers of the American Chemical Society, 232 . INOR 205. ISSN 0065-7727.

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A series of cobalt complexes with macrocyclic imine ligands such as difluoroboryldiglyxomime and [14]-Tetraene-N4 are synthesized for electrochem. hydrogen evolution catalysis. The complexes catalyze the redn. of proton to dihydrogen at potentials in the range between -0.55 V to -0.20 V vs. SCE in acidic acetonitrile solns. A correlation between the rates of hydrogen evolution and the Co(II/I) potentials of the catalysts is established. The catalysis is triggered by the redn. of cobalt(II) precursors to cobalt(I) species, while have been synthesized and studied independently. Attempts are made to isolate important catalytic intermediates such as cobalt(III) hydride species.

Item Type:Article
Hu, Xile0000-0001-8335-1196
Brunschwig, Bruce B.0000-0002-6135-6727
Lewis, Nathan S.0000-0001-5245-0538
Peters, Jonas C.0000-0002-6610-4414
Additional Information:© 2006 American Chemical Society.
Record Number:CaltechAUTHORS:20140730-080036421
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:47576
Deposited By: Tony Diaz
Deposited On:30 Jul 2014 17:32
Last Modified:07 Oct 2019 17:37

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