Synthesis and Physico-Chemical Studies of Some Penta-Coordinated Oxovanadium(IV) Complexes of N-Isonicotinamido-2-Hydroxy-1-Naphthalidimine

Abstract

In the present work, we have synthesized a series of six complexes of the general composition VOX₂.n (INH-Naph) (X = Cl^–, Br^–, I^–, NO₃^– or NCS^–, n = 1; X = ClO₄^–, n = 2; INH-naph = N-isonicotinamido-2-hydroxy-1-naphthalidimine). The complexes were characterized through elemental analysis, conductance, molecular weight, magnetic moment, infrared and electronic spectral data. The IR data of the complexes indicate the bidentate nature (N, O) of the ligand. The suggested coordination number is five in these complexes. T.G.A. of the complexes were also studied.