Abstract
Abstract Several new coordination complexes of nickel (II), cobalt (II), copper(II), manganese(II), zinc(II), zirconium (IV), oxomolybdenum (V), and dioxouranium (VI) with the new Schiff base derived from salicylaldehyde and thiophene-2-carboxylic acid hydrazide have been synthesized and characterized by elemental analysis, electrical conductance, molecular weight, oxidimetric titration, electronic and IR spectra, and magnetic susceptibility measurements. The Schiff base behaves as a dibasic, tridentate ligand coordinating through an ONO donor system and forms complexes of the compositions NiL.3H2O, CoL.2H2O,[CuL]2, MnL.2H2O, ZnL.H2O,[Mo OCIL]2, Zr(OH)2 (LH)2, Zr(OH)2L.2CH3OH and UO2L.CH3OH (where LH2 [dbnd] Schiff base). The nickel (II), cobalt (II) and manganese (II) complexes exhibit normal magnetic moments at room temperature while the copper (II) and oxomolybdenum (V) complexes show subnormal magnetic moments with antiferromagnetic exchange interaction. The zinc(II), zirconium(IV), and dioxouranium(V...
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