Molybdenum Complexes of Bio-Inorganic Interest: Synthesis and Structural Studies of (NH₄)₂MoS₄Cu₂C₂, (NH₄)₂MoS₄Ag₂C₂ and Their Complexes with Certain Lewis Bases

Abstract

(NH₄)₂MoS₄, which acts as bidentate ligand, on reaction with Cu₂C₂ (cuprous acetylide) gave violet compound of the formula, (NH₄)₂MoSCu₂C₂, while its reaction with Ag₂C₂ gave a brown compound of the formula, (NH₄)₂MoS₄Ag₂C₂. These compounds act as Lewis acids towards a number of Lewis bases e.g. pyridine (py), 2,2′-bipyridyl (bipy), nicotinamide (nia), triphenylphosphine (tpp), and 1,10-phenanthroline (phen). These complexes have been studied by elemental analysis, molar conductance, magnetic moment, infrared and electronic spectra which indicate polymeric bridged structure for the anions, (Cu₂C₂MoS₄)^2- and (Ag₂C₂MoS₄)^2- and monomeric bridged structure for all other complexes.