Abstract

Bimal Kumar¹, B.K. Rai* and Nisha Ambastha²

Complexes of general molecular formula [M(AQTC)₂X₂], where M = cobalt(II), nickel(II) and copper(II), AQTC = 2 phenyl quinoxaline thiosemicarbazone, X = Cl^–, Br-, I^– and NO₃^– have been synthesized. Complexes were characterised by analytical analyses, IR spectra, electronic spectra, molar mass, conductivity measurements. The compound AQTC acts as a neutral, bidentate ligand and bonded to the metal ion through azomethine N and sulphur atom of thiosemicarbazone moiety. The remaining coordinating positions are satisfied by anions such as Cl^–, Br^–, I^– and NO₃^–. Electronic spectral and magnetic susceptibility values reveals octahedral geometry for the complexes. The complexes were found to be non electrolytic in nature on the basis of low value of molar conductance. The ligand as well as metal complexes have been screened for their antibacterial and antifungal activity.

AQTC;l cobalt(II); nickel(II); copper(II); Schiff base; antimicrobial; antifungal activity

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