Electrochemical reduction of phenylvinylidene complexes containing Mn, Fe,and Pt

Data are summarized on electrochemical reduction of phenylvinylidene comple xes of four types: mononuclear Cp(CO)(2)Mn=C=CHPh, binuclear [Cp(CO)(2)Mn]( 2)(mu -C=CHPh), Cp(CO)(2)MnPt(mu -C=CHPh)LL' [L and L` = PPh3, P(OPr-i)(3) P(OPh)(3), and CO], and Cp(CO)(2)MnPt(mu -C=CHPh)(P-P) [P-P = Ph2PCH2PPh2, Ph2P(CH2)(2)PPh2, and Ph2P(CH2)(3)PPh2], trinuclear CpMnFePt([mu (3)-C=CHPh )(CO)(5)LL', and tetranuclear (P-P)PtFe3(mu (4)-C=CHPh)(CO)(9). The effect of the structure, the nature of the metal and ligand, and the mode of vinyl idene coordination to the metal center (v(1), mu (2), mu (3), or mu (4)) on the electrochemical behavior of the complexes. was elucidated.