Synthesis, Spectral and Thermal Investigations of Some Oxovanadium(IV) Complexes of Hydrazones of Isonicotinic Acid Hydrazide

Authors : Ram K AGARWAL, Lakshman SINGH

Pages : 309-316

View : 11 | Download : 10

Publication Date : 0000-00-00

Article Type : Research Paper

Abstract :A new series of 12 complexes of oxovanadiuminsert ignore into journalissuearticles values(IV); with hydrazones of isonicotinic acid hydrazide, namely N-isonicotinamido-3`,4`,5`-trimethoxybenzalaldimine insert ignore into journalissuearticles values(INH-TMB); and N-isonicotinamido-2`-furanaldimine insert ignore into journalissuearticles values(INH-FUR); with the general formula VOX2.nL insert ignore into journalissuearticles values(X = Cl, Br, I, NCS, NO3, n = 1; X = ClO4, n = 2; L = INH-TMB or INH-FUR); were synthesized and characterized on the basis of analytical, conductance, molecular weight, magnetic moment, infrared and electronic spectral data. The infrared data of the complexes reveal the bidendate nature of both ligands and coordination to carbonyl-oxygen and azomethinic-nitrogen atoms. The probable coordination number of the central metal is 5. Thermal stabilities of the complexes were studied through thermogravimetric analysis.
Keywords : Oxovanadium IV, Hydrazones, Coordination compounds