Voltammetric Characterization of trans-Dioxo Ethylenediamine Complexes of Re(V) in Aqueous Solutions

The electrochemical behavior of trans-[Re(V)O2(en)2]I and trans-[Re(V)O2 (en)2]ClO4 (en=ethylenediamine) complexes was studied by cyclic voltammetry on Au electrodes. Experiments were performed in aqueous solutions at pH 7.0 and at room temperature. The complex voltammogram was characterized by Re-c...

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Bibliographic Details
Published in:Journal of colloid and interface science 2001-04, Vol.236 (1), p.104-107
Main Authors: Cerdá, M.Fernanda, Obal, Gonzalo, Méndez, Eduardo, Zinola, Carlos F., Kremer, Carlos, Martins, M.Elisa, Luna, Ana M.Castro
Format: Article
Language:English
Subjects:
Chemistry
cyclic voltammetry
Exact sciences and technology
General and physical chemistry
gold
iodine
perchlorate
rhenium complexes
Solution properties
Solutions
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Summary:The electrochemical behavior of trans-[Re(V)O2(en)2]I and trans-[Re(V)O2 (en)2]ClO4 (en=ethylenediamine) complexes was studied by cyclic voltammetry on Au electrodes. Experiments were performed in aqueous solutions at pH 7.0 and at room temperature. The complex voltammogram was characterized by Re-containing species, assigned to the [Re(V)O2(en)2]+/[Re(IV)O2(en)2] couple, and I-containing species. To overcome I interference, the electrochemical response of Re complexes was segregated by performing a reductive desorption of adsorbed I from Au.
ISSN:0021-9797
1095-7103
DOI:10.1006/jcis.2000.7375