Electroreduction mechanism of 8-quinolinecarboxylic acid and the herbicide quinmerac on mercury electrodes

The electroreductions of 8-quinolinecarboxylic acid and his derivative quinmerac (a quinolinic herbicide) are studied by cyclic and differential pulse voltammetry on mercury electrodes. The use of surfactants was found essential to avoid the adsorption of reactants on the mercury surface. In both ca...

Full description

Saved in:
Bibliographic Details
Published in:Electrochimica acta 2012-07, Vol.74, p.87-92
Main Authors: Pintado, Sara, Montoya, Mercedes Ruiz, Mellado, José Miguel Rodríguez
Format: Article
Language:English
Subjects:
8-Quinolinecarboxylic acid
Auxin herbicides
Chemistry
Derivatives
ECE processes
Electrochemistry
Electrodes
Electrodimerization
Electrowinning
Exact sciences and technology
General and physical chemistry
Herbicides
Kinetics and mechanism of reactions
Mercury
Mercury surface
Quinmerac
Radicals
Surface chemistry
Citations: Items that this one cites
Online Access:Get full text
Tags: Add Tag
No Tags, Be the first to tag this record!
Description
Summary:The electroreductions of 8-quinolinecarboxylic acid and his derivative quinmerac (a quinolinic herbicide) are studied by cyclic and differential pulse voltammetry on mercury electrodes. The use of surfactants was found essential to avoid the adsorption of reactants on the mercury surface. In both cases the electroreduction processes corresponded to electrodimerization reactions in competition with ECE processes, depending on the experimental conditions. The oxidation of the radicals formed after the first electron transfers differ from 8-quinolinecarboxylic acid to quinmerac, being more complicated in this last case.
ISSN:0013-4686
1873-3859
DOI:10.1016/j.electacta.2012.04.021