Undecacarbonyl(methylcyclopentadienyl)- tetrahedro -triiridiummolybdenum, undecacarbonyl(tetramethylcyclopentadienyl)- tetrahedro -triiridiummolybdenum and undecacarbonyl(pentamethylcyclopentadienyl)- tetrahedro -triiridiummolybdenum

The crystal structure of the molybdenum organometallic compound complexes was studied. The alkyl cyclopentadienyl ligands provided flexibility in tuning the electronic and steric properties of the complex. The decreasing Mo-Co distances on increasing both steric bulk and electronic-donating properties of the alkylcyclopentadienyl ligands showed that electronic factors dominated over steric consideration of the ligand disposition