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Synthesis and thermokinetic behavior of schiff base transition metal complexes of [1-(5-chloro-2-hydroxyphenyl)ethanone-2-chloropyridine-3- carboxamide] | Abstract

Der Pharma Chemica
Journal for Medicinal Chemistry, Pharmaceutical Chemistry, Pharmaceutical Sciences and Computational Chemistry

ISSN: 0975-413X

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Abstract

Synthesis and thermokinetic behavior of schiff base transition metal complexes of [1-(5-chloro-2-hydroxyphenyl)ethanone-2-chloropyridine-3- carboxamide]

Author(s): Abdul Wajid and Rahul B. Mohod

The synthesis of a new Schiff base derived from 1-(5-chloro-2-hydroxyphenyl)ethanone with 2-chloropyridine-3- carboxamide and its coordination compounds with Cr(III), Mn(II), Co(II), Ni(II), Cu(II), Zn(II) and Cd(II) are described. The ligand and the complexes have been characterized on the basis of analytical, electrical conductance, molecular weight, IR and electronic spectra, magnetic susceptibility measurements and thermogravimetric analysis. The ligand acts as a tribasic. The isolated products are colored solids and are soluble in DMF and DMSO. The thermogravimetric study indicates all the complexes are stable up to 60-70oC. All the complexes show half decomposition temperature and various kinetic and thermodynamics parameters have been evaluated from thermal data. The similarity in the values of kinetic parameters indicates a common decomposition reaction mode in all the complexes. The thermal activation energy of all the complexes has been calculated by Freeman-Carroll and Sharp- Wentworth methods.


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