Ligand substitution reaction in the parent cluster (μ3-FcCHC)FeCo2(CO)9 and structural characterization of its CO substituted derivatives

The new substituted derivatives (μ3-FcCHC)FeCo2(CO)7dppm (Fc = C5H5FeC5H4, ferrocenyl; dppm = Ph2PCH2PPh2) (1), (μ3-FcCHC)FeCo2(CO)8L [L = PPh3 (2); AsPh3 (3)] have been synthesized by facile substitution reactions. The molecular structures and electrochemical properties of 1, 2 and 3 were investigated by single crystal X-ray analysis and cyclic voltammetry, respectively.