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Weiming Gao, Junliang Sun, Mingrun Li, Torbjörn Åkermark, Kristina Romare, Licheng Sun and Björn Åkermark Synthesis of a [3Fe2S] Cluster with Low Redox Potential from [2Fe2S] Hydrogenase Models: Electrochemical and Photochemical Generation of Hydrogen European Journal of Inorganic Chemistry 2011

Version of Record online: 5 JAN 2011 | DOI: 10.1002/ejic.201000872

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An unexpected and efficient transformation of the [2Fe2S] complexes 1a and 1b into complex [3Fe2S(dppv)2] (2) [dppv = bis(cis-Ph2PCH=CHPPh2)] is described. Under acidic conditions, cyclic voltammetry experiments showed electrochemical activity for hydride 3, formed by protonation of complex 2, at –1 V vs. Fc/Fc+ and catalysis of hydrogen evolution at –1.23 V vs. Fc/Fc+.

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