Reduction Of Some Dithiophosphonates In Aprotic Media On Freshly Copper Plated Glassy Carbon Electrode

Year 2011, Volume: 2 Issue: 12, 1 - 16, 01.01.2011

P. Çekirdek A.o. Solak A. Aydin H. Yilmaz

Abstract

Dithiophosphonates are reduced electrochemically with two electron transfer in acetonitrile containing 0.1 M tetrabutylammonium tetrafluoroborate TBATFB at a freshly copper plated GC electrode. The peaks for all of the dithiophosphonate derivatives were observed at about –1.5 V vs. Ag/Ag+ at copper plated GC electrode. Data revealed that the reduction process on copper electrode was irreversible and followed by EC mechanism. The diffusion coefficients and numbers of electrons transferred were found by UME electrode using Baranski method. The adsorption tests were applied to examine the adsorption characteristics of the derivatives under investigation. Simulation CV voltammograms of dithiophosphonates were acquired by DigiSim® 3.03 version and compared with the experimental voltammograms to calculate the chemical and electrochemical constants

Keywords

Dithiophosphonates, electrochemical reduction, cyclic voltammetry, digital simulation, chronoamperometry, adsorption, ultramicro electrode

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