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Probing mechanisms of cobalt-catalyzed dihydrogen production from acidic solutions

Dempsey, Jillian L. and Peters, Jonas C. and Winkler, Jay R. and Gray, H. B. (2006) Probing mechanisms of cobalt-catalyzed dihydrogen production from acidic solutions. Abstracts of Papers of the American Chemical Society, 232 . INOR 252. ISSN 0065-7727.

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Cobalt macrocycles capable of catalyzing the evolution of dihydrogen from acidic acetonitrile solns. are being investigated as part of a collaborative solar energy initiative. These metal complexes mediate electrocatalytic dihydrogen prodn. at relatively pos. potentials (up to -0.26 V vs. SCE). The catalysis is activated by the redn. of Co(II) species to a Co(I) intermediate, which likely adds a proton to give a Co(III) hydride that reacts further to produce dihydrogen. We are employing laser flash-quench methods coupled with time-resolved spectroscopic monitoring to identify key intermediates in the reaction cycle that leads to dihydrogen prodn.

Item Type:Article
Peters, Jonas C.0000-0002-6610-4414
Winkler, Jay R.0000-0002-4453-9716
Gray, H. B.0000-0002-7937-7876
Additional Information:© 2006 American Chemical Society.
Record Number:CaltechAUTHORS:20140730-081255229
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Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:47581
Deposited By: Tony Diaz
Deposited On:30 Jul 2014 17:29
Last Modified:22 Nov 2019 09:58

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