SYNTHESIS, CHARACTERIZATION AND CRYSTAL-STRUCTURE OF [MO(CO)5]4TPTA AND [W(CO)5]4TPTA HENYLPHOSPHINO)-1,4,8,11-TETRAAZACYCLOTETRADECANE)

Pentacarbonyl complexes of molybdenum and tungsten with phenylphosphin o)-1,4,8,11-tetraazacyclotetradecane (TPTA) have been prepared and cha racterized. The compounds possess four M(CO)5 units per ligand, with a n octahedral coordination environment for each metal atom, all bound t o the phosphorus donors from the pendant arms.