ELECTROPOLYMERIZATION AND ELECTROCATALYTIC BEHAVIOR OF ELECTRODES MODIFIED WITH Fe AND NON-METALLED TETRAAMINOPHENYLPORPHYRINS: EFFECT OF THE POSITION OF THE AMINO GROUP ON THE LIGAND

Cornejo G.; Ramirez G.; Villagrán M.; Costamagna J; Trollund, E; AGUIRRE, MJ

Abstract

Three monomeric iron and non-metalled tetraaminophenylporphyrins, with amino groups located in defferent positions of the phenyl substituents, were electropolymerized. These processes were carried out through continuous cycling of the potential on glassy carbon electrode surfaces. The aim of the work was to determine the effect of the amino groups? position on the properties of the modified-electrodes. Phenyl substituents of the porphyrins were not conjugated with the macrocycle. Therefore, their substituents were only expected to modify the electropolymerization and not the potential of the redox metallic couples on the polymer. However, it was found that, when the complex is polymerized, the position of the amino groups greatly changes the potential of the iron couples. Thus, the electrocatalytic activity of the polymer-modified electrode toward the reduction of oxygen strongly depends on the position of amino substituents

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Título según WOS: Electropolymerization and electrocatalytic behavior of electrodes modified with Fe and non-metalled tetraaminophenylporphyrins: Effect of the position of the amino group on the ligand.
Título según SCOPUS: Electropolymerization and electrocatalytic behavior of electrodes modified with Fe and non-metalled tetraaminophenylporphyrins: Effect of the position of the amino group on the ligand
Título según SCIELO: ELECTROPOLYMERIZATION AND ELECTROCATALYTIC BEHAVIOR OF ELECTRODES MODIFIED WITH Fe AND NON-METALLED TETRAAMINOPHENYLPORPHYRINS: EFFECT OF THE POSITION OF THE AMINO GROUP ON THE LIGAND
Título de la Revista: Journal of the Chilean Chemical Society
Volumen: 48
Número: 1
Editorial: Sociedad Chilena de Química
Fecha de publicación: 2003
Página de inicio: 49
Página final: 55
Idioma: English
DOI:

10.4067/S0717-97072003000100009

Notas: ISI, SCIELO, SCOPUS