Electrochemistry of group VI metal carbonyl compounds containing 1,1′-bis(diphenylphosphino)ferrocene

The oxidative electrochemistry of a variety of homo- and bimetallic group VI metal carbonyl compounds containing 1, 1'-bis(diphenylphosphino)ferrocene (dppf) with the general formulas M(CO)(5)(dppf) (1a-c), M(CO)(4)(dppf) (2a-c), and (CO)(5)M(dppf)M'(CO)(5) (3a-f) (M, M'= Cr, Mo, W) was investigated. The effect of the group VI metal and the coordination mode of the dppf ligand on the potential at which the oxidation of the group VI metals and the ferrocene backbone of dppf occurred was examined.