alexa Synthesis, Spectroscopic Studies and Biological Evaluat
ISSN: 2329-6798

Modern Chemistry & Applications
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Research Article

Synthesis, Spectroscopic Studies and Biological Evaluation of Co(II), Ni(II), Cu(II) and Zr(IV) Complexes of Azo Dyes and Thiamine Hydrochloride as Antimicrobial Agents

Islam M1 and Magda A2*

1Chemistry Department, Faculty of Science, Benha University, Benha, Egypt

2Chemistry Department, Faculty of science, Turbah branch, Taif University, Taif, Saudi Arabia

Corresponding Author:
Magda A
Deanship of Scientific Research
Taif University, Saudi Arabia
Tel: +966554156900
E-mail: [email protected]

Received date: November 22, 2016; Accepted date: December 21, 2016; Published date: January 02, 2017

Citation: Islam M, Magda A (2017) Synthesis, Spectroscopic Studies and Biological Evaluation of Co(II), Ni(II), Cu(II) and Zr(IV) Complexes of Azo Dyes and Thiamine Hydrochloride as Antimicrobial Agents. Mod Chem Appl 5:202. doi:10.4172/2329-6798.1000202

Copyright: © 2017 Islam M, et al. This is an open-access article distributed under the terms of the Creative Commons Attribution License, which permits unrestricted use, distribution, and reproduction in any medium, provided the original author and source are credited.



Four series of novel mixed ligand–drug complexes of thiamine hydrochloride as a primary ligand and four azo compounds, as secondary ligands, were prepared using Co (II), Ni (II), Cu (II) and Zr (IV) ions. The complexes were characterized by elemental analysis, thermogravimetric analysis, molar conductivity, FT-IR, magnetic susceptibility and UV-Visible spectroscopy. Based on the analytical and spectral data, the complexes were formulated as [Azo – M – Thiamine (H2O)n]+Cl- where n=2 for Co (II), Ni (II) and Cu (II) and=1 for Zr (IV). All the complexes possessed octahedral geometry in which both the primary and secondary ligands act as monovalent monodentate coordinated via ON fashion in case of azo compounds and via OS fashion in case of thiamine hydrochloride. Biological activity of some complexes has been evaluated against a number of pathogenic bacteria and fungi. Obtained results indicated that the metal complexes exhibited better antimicrobial and antifungal activities.


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