Tetracarbonyl group 6B metal complexes of a N-(4-acetylphenyl)-N-(diphenylphosphino)amine ligand. Molecular structure of cis-[Cr(CO)4{4-CH3CO–C6H4-1-N(PPh2)2}]

Abstract

Chemical reactions of N -(4-acetylphenyl)- N -(diphenylphosphino)amine ligand ( 1 ) with three group 6B metal hexacarbonyls produced cis -M(CO) 4 [ 1 - k 2 P,P ][ M = Cr( 2 ), Mo( 3 ), W( 4 )], respectively. The novel complexes 2–4 were isolated and their structures were elucidated by multinuclear NMR spectroscopy ( 1 H, 13 C, 31 P NMR) and elemental analysis. Crystal-structure determination using single-crystal X-ray diffraction was carried out on complex 2 .