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Original Articles

Synthesis, Spectral Studies, and Biological Activity of Metal Complexes of Benzofuran Thiosemicarbazides

, &
Pages 1755-1768 | Received 04 Jun 2003, Accepted 11 Jun 2004, Published online: 16 Nov 2010
 

Abstract

The complexes of Co(II), Cu(II), Ni(II), Cd(II), Hg(II), Zn(II), UO2(VI), and Th(IV) with benzofuran thiosemicarbazides have been prepared. All complexes have the general formula MLX n , where n = 2 or 4, X = Cl or NO3 and L is the ligand prepared by the reaction of benzofuran‐2‐carboxyhydrazide with p‐methyl, p‐methoxy, or p‐bromophenylisothiocyanate. The complexes were characterized on the basis of elemental analyses, spectral, magnetic moment, and conductance studies. The ligands coordinate to the metal ions through the oxygen of the arbonyl group and the nitrogen of the hydrazine group. We have assigned the probable geometry for all of these complexes based on their physico‐chemical data. All the metal complexes and ligands were screened for their anti‐microbial activity.

Acknowledgments

One of the authors (MBH) is thankful to the University Grants Commission (UGC), New Delhi, for financial assistance in form of a Major Research Project and ZSQ is thankful to the UGC, New Delhi, for awarding a teacher fellowship under the IX plan period. We thank the Professor and Chairman, Department of Chemistry, Gulbarga University, Gulbarga, for encouragement and for the use of their facilities.

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