“Correlation Between Thermal Stability AND Kinetic Parameters OF Metal Complexes”

Abstract

Metal complexes are significant in most fields such as catalysis, biology and materials science. Thermal stability and kinetic parameters of the complexes are the key determinants of the structural integrity and reactivity of such complexes. In this paper, the relationship between thermal stability and kinetic values of the selected transition metal complexes has been discussed. The thermal analysis was performed by thermogravimetric analysis (TGA) and differential thermal analysis (DTA) and the calculation of the kinetic parameters (activation energy (Ea)) and (frequency factor (A) and entropy of activation (ΔS)) using Coats-Redfern and Horowitz-Metzker methods. The results indicate the positive relationship that is high between thermal stability and activation energy are high which means that complexes with high activation energy have higher thermal resistance. These findings contribute to the limited literature of correlation between stability and kinetics which plays a crucial role in the development of thermally stable metallic complex to be employed in industries and pharmaceutical market.