alexa Abstract | Synthesis and characterization of Cr(III), Mn(III), Fe(III), VO(IV), Zr(IV) and UO2 (VI) complexes of schiff base derived from isonicotinoyl hydrazone

Indian Journal of Pharmaceutical Sciences
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Research Paper Open Access

Abstract

2-hydroxy-5-chloro-3-nitroacetophenone isonicotinoyl hydrazone as a Schiff base ligand and its complexes with Cr(III), Mn(III), Fe(III), VO(IV), Zr(IV) and UO2(VI) metal ions have been synthesized. The ligands as well as their metal complexes were well characterized using various physicochemical techniques such as elemental analyses, molar conductance measurements, magnetic measurements, thermal analysis, electronic and IR spectral studies. On the basis of these studies, square pyramidal stereochemistry for Mn(III) and VO(IV) complexes while octahedral stereochemistry for all the other complexes have been suggested. The complexes were found to be stable up to 60-70° and thermal decomposition of the complexes ended with respective metal oxide as a final product. The thermal data have been analyzed for kinetic parameters using Broido and Horowitz-Metzger methods. The synthesized Schiff base ligand and its complexes were also tested for their antimicrobial activity using various microorganisms.

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Author(s): Pranita U Gawande PR Mandlik AS Aswar

Keywords

Isonicotinoyl hydrazone, Schiff base ligand, TGA, electronic spectral data, antimicrobial

 
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