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Journal Articles Comptes Rendus. Chimie Year : 2015

A simple method for the preparation of bio-inspired nickel bisdiphosphine hydrogen-evolving catalysts

Abstract

We herein report on a novel, simple and straightforward method for the preparation of nickel bisdiphosphine hydrogen-evolving catalysts, so-called DuBois catalysts, from commercially available nickel hexaaqua salts. This method yields coordination complexes with the same physical characteristics as previously described for compounds prepared from the [Ni(CH$_3$CN)$_6$]$^{2+}$ precursor. However, if hexaaquanickel(II) chloride is used as a precursor, a different nickel bisdiphosphine complex is formed, which incorporates chloride as an axial ligand. This complex displays a significantly different electrochemical behavior and a diminished activity for proton reduction as compared to classic DuBois catalysts.

Dates and versions

hal-01206526 , version 1 (29-09-2015)

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Jane Reuben T., Phong D. Tran, Eugen S. Andreiadis, Jacques Pécaut, Vincent Artero. A simple method for the preparation of bio-inspired nickel bisdiphosphine hydrogen-evolving catalysts. Comptes Rendus. Chimie, 2015, 18 (7), ⟨10.1016/j.crci.2015.03.005⟩. ⟨hal-01206526⟩
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