Group 10 metal compounds of 1,1′-bis(diphenylphosphino)ferrocene (dppf) and 1,1′-bis(diphenylphosphino)ruthenocene: a structural and electrochemical investigation. X-ray structures of [MCl2(dppr)] (M=Ni, Pd)

The oxidative electrochemistry of 1,1′-bis(diphenylphosphino)ferrocene (dppf) and 1,1′-bis(diphenylphosphino)ruthenocene (dppr) was investigated at a variety of temperatures and concentrations. In addition, the oxidative electrochemistry of [NiCl2(dppf)] and [MCl2(dppr)] (M=Ni, Pd or Pt) compounds was studied. During the preparation of the dppr compounds, crystals of [NiCl2(dppr)] and [(PdCl2(dppr)]·CH2Cl2 were obtained and the structures were determined. With the previously determined structures of [MCl2(dppf)] (M=Ni, Pd or Pt) and [PtCl2(dppr)], a thorough examination of the binding of dppf and dppr to Group 10 metals was performed.