Synthesis and Characterization of a New Bidentate Ligand 5-Substituted-2-methyl-5-nitro-1-imidazomethyl-1,3,4-oxadiazole-2-thione and its Metal Complexes of AgI, CuII and ZnIIReport as inadecuate




Synthesis and Characterization of a New Bidentate Ligand 5-Substituted-2-methyl-5-nitro-1-imidazomethyl-1,3,4-oxadiazole-2-thione and its Metal Complexes of AgI, CuII and ZnII - Download this document for free, or read online. Document in PDF available to download.

E-Journal of Chemistry - Volume 8 2011, S1, Pages S127-S136



Department of Chemistry, Mangalore University, Mangalore-574 199, India

Department of Chemistry, Anjuman Engineering College, Bhatkal-581320, Karnataka, India

Received 2 March 2011; Accepted 28 April 2011

Copyright © 2011 Hindawi Publishing Corporation. This is an open access article distributed under the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original work is properly cited.

Abstract

A new ligand 2-methyl-5-nitro-1-imidazomethyl-1,3,4-oxadiazole-2-thione L and its AgI,CuII and ZnII complexes were synthesized. The authenticity of the ligand and its transition metal complexes were established by elemental analyses, conductance and magnetic susceptibility measurements, as well as spectroscopic IR,

H NMR, electronic, mass and ESR and thermal studies. The IR spectral studies revealed the existence thiol-thione tautamerism in the ligand molecule. The magnetic and electronic spectral studies suggest an octahedral geometry for CuII and ZnII complexes. The ligand acts as a bidentate coordinating through the N-3 nitrogen and the exocyclic sulfur atoms of oxadiazole rings. Antimicrobial screening of the ligand and its metal complexes were determined against the bacteria Escherichia coli and Salmonella paratyphiA.





Author: Shabbir A. A. Kazi

Source: https://www.hindawi.com/



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