Evaluation of Kinetic and Thermodynamic Parameters of 1, 1’-Dibenzoylferrocene in Methanol by Cyclic Voltammetry

The electrochemical Kinetic study of 1, 1′- Dibenzoylferrocene (DBF) at a platinum working electrode in 0.1 mol dm^-3 NaClO₄ non aqueous medium has been studied by Cyclicvoltammetry. The heterogeneous electron transfer rate constants (ks) and the diffusion coefficients (Do) of DBF were estimated at various temperatures (283 – 323 K) and at different scan rates (0.05 – 0.5 V s^-1 ). A calibration curve, linear over the range of 1x10^-3 – 9x10^-3 mol dm^-3 , was plotted at the scan rate of 0.25 Vs^-1 . This plot can be used to analyze an unknown sample of the compound. The kinetic data was also used to evaluate the Activation energy (E_a). The thermodynamic parameters such as enthalpy change of activation (ΔH^*), Entropy change (ΔS^*) and Gibbs free energy change (ΔG^*) were also investigated during the study.