Dioxotungsten(VI) complexes of α-nitroso-β-naphthol and β-nitroso-α-naphthol

摘要

Some novel dioxotungsten(VI) complexes of α-nitroso-β-naphthol and β-nitroso-α-naphthol having the compositions [WO2L2ClX] (where X = Cl, NO3, NCS or ClO4 and L = α-nitroso-β-naphthol or β-nitroso-α-naphthol) have been synthesised and characterized by elemental analyses, molar conductance, IR, ~1H NMR and ESI mass spectral studies. The thermal behaviour of one of the complexes has also been examined. The ligands behave as neutral monodentate chelating agents in all the complexes, coordinating through the carbonyl oxygen only. The complexes are found to be monomeric and non-electrolytes with hexa-coordinate and tetragonally distorted octahedral geometry. The 3D molecular modeling and analysis for bond length and bond angles have also been carried out for complexes.