Synthesis and Characterization of Carbonyl Group-6-Metal Derivatives with Ligand N,N-Bis(diphenylphosphino)naphthalen-1-amine (=N-(Diphenylphosphino)-N-naphthalen-1-yl-P,P-diphenylphosphinous Amide). Molecular Structure of cis-Tetracarbonyl[N-(diphenylphosphino-P)-N-naphthalen-1-yl-P,P-diphenylphosphinous amide-P]molybdenum (cis-[Mo(CO)4{C10H7-1-N(PPh2)2}])

The reaction of N,N-bis(diphenylphosphino)naphthalen-1-amine (1) with [M(CO)6] (M=Cr, Mo, W; 1:1 molar ratio) afforded cis-[M(CO)4(1)] 2 (M=Cr), 3 (M=Mo), and 4 (M=W). Compounds 24 were identified and characterized by elemental analysis and multinuclear NMR (1H-, 13C-, and 31P-NMR) and IR spectroscopy. A crystal-structure determination of complex 3 was carried out.