Synthesis and characterization of chromium and molybdenum(0) complexes bearing the (pentafluoroethyl)diphenylphosphine (pfepp) ligand

Treatment of M(CO)6 and pfepp in refluxing octane afforded (pfepp)M(CO)5 (M = Cr 1, Mo 2; pfepp = PPh2C2F5). These complexes were spectroscopically characterized and the crystal structures of 1 and 2 are reported.