Interfacial electron-transfer and ligand-dissociation characteristics of layer-by-layer nanoarchitectures constructed from ruthenium cluster molecules

Takayuki Michi, Masaaki Abe, Shen Ye, Masatoshi Osawa, Toshihiro Kondo, Kohei Uosaki, Yoichi Sasaki

Research output: Contribution to conferencePaperpeer-review

1 Citation (Scopus)

Abstract

Interfacial electron-transfer properties and CO-dissociation reactions at redox-active multilayers which were prepared from trinuclear ruthenium cluster molecules have been examined by cyclic voltammetry. The series of multilayers (up to five layers) assembled on gold electrodes show a single-step, reversible, multi-electron redox processes whose redox potentials are finely tuned by the number of Ru 3 components involved in the layers and are also affected by the nature of electrolyte anions. Electrochemical oxidation of the surface-confined CO-terminated multilayers (0.1 M HClO 4 aq., 298 K) induces dissociation of CO from the top layer, resulting in the change of the cyclic voltammograms. The redox-induced CO-dissociation reaction for each of the multilayers obeys the first-order kinetics, in which the rate constants range in the order 10 -2 s -1 (298 K).

Original languageEnglish
Pages116-131
Number of pages16
Publication statusPublished - 2004 Dec 1
Externally publishedYes
Event206th ECS Meeting - Honolulu, HI, United States
Duration: 2004 Oct 32004 Oct 8

Other

Other206th ECS Meeting
Country/TerritoryUnited States
CityHonolulu, HI
Period04/10/304/10/8

ASJC Scopus subject areas

  • Engineering(all)

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