An Electrochemical Study of Immobilized Ruthenocene in Aqueous Media

The voltammetric exploration of ruthenocene RuCp2 in aqueous solution via abrasive modification on a basal plane pyrolytic graphite electrode is reported. It is found that ruthenocene undergoes a one‐electron electrochemically irreversible oxidation to ruthenocenium, which then rapidly dimerizes to...

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Veröffentlicht in:Electroanalysis (New York, N.Y.) N.Y.), 2007-03, Vol.19 (5), p.555-560
Hauptverfasser: Banks, Craig E., Robinson, Kay L., Liang, Han-Pu, Meredith, Andrew W., Lawrence, Nathan S.
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container_end_page 560
container_issue 5
container_start_page 555
container_title Electroanalysis (New York, N.Y.)
container_volume 19
creator Banks, Craig E.
Robinson, Kay L.
Liang, Han-Pu
Meredith, Andrew W.
Lawrence, Nathan S.
description The voltammetric exploration of ruthenocene RuCp2 in aqueous solution via abrasive modification on a basal plane pyrolytic graphite electrode is reported. It is found that ruthenocene undergoes a one‐electron electrochemically irreversible oxidation to ruthenocenium, which then rapidly dimerizes to form [RuCp2]$\rm{ {_{2}^{2+}}}$. Then, depending on the anion in solution, either disproportionates to [RuCp2]2+ and subsequently decomposes to ruthenium oxide, or is anion stabilized. SEM images and cyclic voltammetry of the electrode surface indicates that in the presence of smaller anions the dimer is not stabilized, whereas for larger anions, such as sodium toluene sulfonate, the dimer is stabilized and decomposition is inhibited.
doi_str_mv 10.1002/elan.200603771
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It is found that ruthenocene undergoes a one‐electron electrochemically irreversible oxidation to ruthenocenium, which then rapidly dimerizes to form [RuCp2]$\rm{ {_{2}^{2+}}}$. Then, depending on the anion in solution, either disproportionates to [RuCp2]2+ and subsequently decomposes to ruthenium oxide, or is anion stabilized. 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source Wiley Online Library Journals Frontfile Complete
subjects Abrasive modification
Anion locking
Basal plane pyrolytic graphite electrode
Ruthenium oxide
Ruthenocene
Voltammetry
title An Electrochemical Study of Immobilized Ruthenocene in Aqueous Media
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