Thangavelu, S. (1988) Reduction of phenylglyoxylic acid on silver cathode in dimethyl formamide. Bulletin of Electrochemistry , 04 (10). pp. 897-900. ISSN 0256-1654

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The electrochemical reduction of potassium phenylglyoxylate was studied at a silver disc electrode in dimethylformamide medium using cyclic voltammetry. Only one irreversible reduction wave at high negative potential (-1.6V vs SCE) was observed. The effect of the presence of proton donors and n-butyl bromide on the voltammetric behaviour of potassium phenylglyoxylatt was also studied to understand the reduction mechanism in aprotic medium. The appearance of one additional irreversible cathodic wave at less negative potential in the presence of proton donors without affecting the original wave and enormou: increase in the wave height of the original wave as well as the additional wave in the presence of n-butyl bromide have in dicated the formation of radical anions in both the waves. These observations have confirmed that the original wave wa! due to the one electron reduction of phenylglyoxylate anion which was followed by dirnerization and the additional wave observec in the presence of limited amount of protons was due to the one electron reduction of phenylglyoxylic acid molecule

Item Type: Article
Uncontrolled Keywords: Phenylglyoxylic acid; Silver cathode; Nonaqueous medium; Cyclic voltammetry
Subjects: Electroorganic
Depositing User: ttbdu cecri
Date Deposited: 25 Mar 2012 16:17
Last Modified: 25 Mar 2012 16:17

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