Collect. Czech. Chem. Commun. 1997, 62, 1690-1697

Determination of the Charge Transfer Parameters of 4,4'-(Ferrocene-1,1'-diyldivinylene)bis(benzo-15-crown-5) at Glassy Carbon Electrode

Mohamed El-Metwally Ghoneima, Youssef Ibrahim Moharrama and Norman Taylorb

a Department of Chemistry, Faculty of Science, Tanta University, Tanta, Egypt
b Department of Chemistry, University of Leeds, U.K.


Electrochemical parameters of 4,4'-(ferrocene-1,1'-diyldivinylene)bis(benzo-15-crown-5) were collected using cyclic voltammetry, chronoamperometry and chronopotentiometry at a glassy carbon electrode. One-electron quasi-reversible oxidation wave was obtained at Epa of 0.532 V and Epc of 0.387 V. The peak separation, ∆Ep, standard heterogeneous rate constant, k0, and diffusion coefficient, D, of the electrochemical species have been processed by convolution and deconvolution transformations. Digital simulations using the kinetic parameters were also performed.

Keywords: Electrochemistry; Cyclic voltammetry; Chronoamperometry; Glassy carbon; Ferrocenes; Crown ethers.