Studies on the synthesis of novel 2,2′-bis(ferrocenyl)propane derivatives and their reactivity with metal carbonyl clusters

A new ligand, HCC(C5H5FeC5H3)C(CH3)2Fc′CCH, and its cluster [HCC(C5H5FeC5H3)C(CH3)2Fc′CCH] [Co2(CO)6]2 (5) have been synthesized, and novel complex [FcC(CH3)2Fc′CHC]FeCo2(CO)9 (6) was obtained by using an nuclear enlarging reaction of complex [FcC(CH3)2Fc′CCH]Co2(CO)6 with Fe2(CO)9. The molecular structures of the compounds were determined by element analysis, FT-IR, 1H (13C) NMR, MS or X-ray crystallography.