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Non-isothermal degradation-based solid state kinetics study of copper (II) Schiff base complex, at different heating rates

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Abstract

The coordination complex of Cu (II) with the Schiff base derived from 4-chloroaniline with salicylaldehyde have been synthesized and characterized by micro analytical data; FT–IR, UV–Vis, FAB-mass and thermal analysis studies. Thermal data show degradation of complexes. We carried out thermal analysis at three different heating rates viz. 5, 10 and 20 °C per min. The activation thermodynamic parameters, such as activation energy (E*), entropy of activation (ΔS*), enthalpy of activation (ΔH*) and Gibbs free energy (ΔG*) have been calculated with the help of TG, DTA and DTG curves using Coats–Redfern method. The stoichiometry of the complexes are in 1:2 (M:L) molar ratio. Synthesized complex has been tested for their reactivity and substitution behaviour.

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Acknowledgements

The authors are thankful to Mr. Harshil Shah, Mettler Toledo India Private Limited, Powai Mumbai India for Thermal analysis. The financial assistance from U.G.C. New Delhi to SS is also thankfully acknowledged.

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Correspondence to Shraddha Shukla.

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Shukla, S., Mishra, A.P. Non-isothermal degradation-based solid state kinetics study of copper (II) Schiff base complex, at different heating rates. J Therm Anal Calorim 107, 111–117 (2012). https://doi.org/10.1007/s10973-011-1616-4

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