Voltabsorptmetric Study for the One-electron Reduction of Methyl Viologen Using Higher-order Derivative Spectral Method

A voltabsorptmetric study of redox properties of methyl viologen in an optically transparent thin-layer electrode cell was performed. The obtained UV-visible absorption spectra were analyzed using a higher-order derivative conversion (HODC) method. The superimposed absorption bands assigned to the radical cation of the reduced form (MV+·) and its dimer ((MV+·)2) were resolved using the HODC technique. The HODC method was shown to be effective for the analysis of the electrode reaction of the compound with viologen unit.