Thermal analysis and biocidal studies of Copper (II) soap-groundnut complex containing urea and thiourea as a ligand

The present research work aims to report new findings in the field of thermogravimetric analysis and biocidal studies for copper (II) groundnut complexes with urea and thiourea ligands. Studies of thermal degradation of surfactants have great interest for determining the thermal stability and characterization of copper soap complexes, as well as it contributes to the solution of environmental problems. Studies on the thermal decomposition of synthesized complexes have great importance for calculating the thermal stability and characterization of copper (II) soap complexes, and represent new investigations on the solution of environmental problems. The objective of this study is to evaluate the kinetic analysis of Copper (II) soap complexes of nitrogen and sulphur containing ligand with the help of thermogravimetric analyser (TGA), as this technique is commonly applied for thermal analysis. The objective of this study was to conduct the kinetic analysis of copper (II) soap complexes of nitrogen and sulphur-containing ligands with the help of a thermogravimetric analyser (TGA), as this technique is commonly applied for thermal analysis. In relevance of aforesaid applications, the present work deals to determine the different thermal degradation steps of newly synthesized copper (II) groundnut urea complex (CGU) and copper (II) groundnut thiourea complex (CGT) by using Coats-Redfern, Horowitz-Metzger, Broido, and Piloyan-Novikova equations for evaluating kinetic parameters, i.e. activation energy (E), rate constant, order of decomposition reaction and pre-exponential factor (Z). In relevance of aforesaid applications, the present work deals with determining the different thermal degradation steps of newly synthesized copper (II) groundnut urea complex (CGU) and copper (II) groundnut thiourea complex (CGT) by using Coats-Redfern, Horowitz-Metzger, Broido, and Piloyan-Novikova equations for determining kinetic parameters, i.e., the energy of activation (E), rate constant, order of decomposition reaction, and pre-exponential factor (Z). The results obtained from kinetic parameters were used to evaluate the thermodynamic parameters, i.e., entropy of activation (ΔS), enthalpy of activation (ΔH), and Gibbs free energy of activation (ΔG), corresponding to the activation by using previously mentioned equations. Kinetics of degradation for the synthesized complexes in solid state were studied using thermogravimetric analysis technique (TGA) in nitrogen atmosphere. Moreover, the results obtained from kinetic parameters were used to evaluate the thermodynamic parameters, i.e. entropy (ΔS), enthalpy (ΔH) and Gibbs free energy (ΔG) corresponding to the activation by using previously mentioned equations. Kinetics of degradation of for the synthesized complexes in solid state were studied using thermogravimetric analysis technique (TGA) in nitrogen atmosphere. The present study has discussed the biocidal activities of these complexes against Staphylococcus aureus and an explicit correlation between structure and biological activity has also been provided. This work reveals that the pharmacologically interesting copper soap complexes could be a suitable strategy to develop novel therapeutic tools for the medical treatment.