title: Oxidation process induced by 2-mercaptopyrimidine at a mercury electrode.
abstract: The oxidation process induced by 2-mercaptopyrimidine (RSH) at a hanging mercury drop electrode was studied in aqueous media by normal and cyclic voltammetry. The results indicate the formation of a weakly adsorbed HgSR complex according to the reaction Hg+RSH-->HgSR+e(-)+H+. When the surface excess of HgSR is high, a two-dimensional condensation takes place if the potential is positive enough, as proved by phase-sensitive ac and cyclic voltammetry.
authors.affiliation: Departamento de Química Física y Analítica, Universidad de Oviedo, E-33071 Oviedo, Asturias, Spain.
authors.forename: Josefa Angela
authors.initials: JA
authors.lastname: García Calzón
authors.forename: Jesús Luis
authors.initials: JL
authors.lastname: Muñiz Alvarez
authors.forename: Juan Miguel
authors.initials: JM
authors.lastname: López Fonseca
mesh_terms: D000327:Adsorption; D004566:Electrodes; D008628:Mercury / Q000737:chemistry*; D010084:Oxidation-Reduction; D011048:Polarography; D011743:Pyrimidines / Q000737:chemistry*; D013499:Surface Properties
chemical_list: D011743:Pyrimidines; C064001:pyrimidine-2-thiol; D008628:Mercury