4-(2-Thiazolyl)-1-(2-Hydroxybenzaldehyde)Thiosemicarbazone as a Chelating Ligand: Complexes with Oxovanadium(IV), Cobalt(II), Nickel(II), Copper(II), Cadmium(II) and Mercury(II)

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Abstract
Complexes of the compositions VO(H2thbtsc)SO4, Co(H2thbtsc)Cl2, M(H2thbtsc)2Cl2 [M = Ni(II), Cu(II), Cd(II) and Hg(II)] and M(thbtsc).nH2O [M = VO(IV), Co(II), n = 0; Ni(II) and Cu(II), n = 2; H2thbtsc = 4-(2-thiazolyl)-1-(2-hydroxybenzaldehyde)thiosemicarbazone] have been prepared and characterised by analytical data, electrical conductance, magnetic and spectroscopic studies. The bonding and stereochemistry of the complexes and chelating mode of the ligand are discussed.