Electrochemical reduction of Group 6 metal hexacarbonyls in aprotic solvents

Abstract
The mechanism of the reduction of [Cr(CO)6] to [Cr2(CO)10]2– at a platinum electrode in acetonitrile has been investigated by cyclic voltammetry, and it shown that [Cr(CO)5][graphic omitted] is a species stable on the time scale of a few seconds. The mechanisms of reduction of [Mo(CO)6] and [W(CO)6] are apparently similar. Intermediates in the reductions of these Group 6 metal carbonyls react with alkyl halides and carbon dioxide.

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