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Synthesis of a trinuclear ruthenium cluster containing pyridine and 4-acetylpyridine ligands and its immobilization on functionalized silica

Synthese eines dreikernigen Rutheniumclusters mit Pyridin- und 4-Acetylpyridinliganden sowie seine Fixierung auf funktionalisiertem Kieselgel

  • Anorganische Und Physikalische Chemie
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Monatshefte für Chemie / Chemical Monthly Aims and scope Submit manuscript

Summary

The trinuclear cluster [Ru3O(Ac)6(py)2(acpy)]PF6 (py: pyridine;acpy: 4-acetylpyridine) has been synthesized and anchored on functionalized silica. Five successive redox couples exhibitingE°=−1.4, −0.98, 0.21, 1.23, and 2.2 Vvs. SHE have been characterized in acetonitrile solutions based on cyclic voltammetry and spectroelectrochemical measurements. The redox and spectroscopic properties are maintained in the immobilized species, allowing its use in optodes and in electron transfer processes.

Zusammenfassung

Der dreikernige Cluster [Ru3O(Ac)6(py)2(acpy)]PF6(py: Pyridin;acpy: 4-Acetylpyridin) wurde hergestellt und an funktionalisiertem Kieselgel verankert. Mit Hilfe cyclischer Voltammetrie und spektroelektrochemischer Messungen konnten fünf aufeinanderfolgende Redoxpaare beobachtet werden (E 0=−1.4, −0.98, 0.21, 1.23 und 2.2 V bezüglich SHE). Die elektrochemischen und spektroskopischen Eigenschaften bleiben in den fixierten Clustern erhalten und erlauben deren Verwendung in Optoden und bei Elektronenübertragungsprozessen.

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Authors and Affiliations

  1. Instituto de Química, Univ. São Paulo, 05599-970, São Paulo, Brazil

    J. Araujo Jr, S. Nikolaou, A. D. P. Alexiou & H. E. Toma

Authors
  1. J. Araujo Jr
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  2. S. Nikolaou
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  3. A. D. P. Alexiou
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  4. H. E. Toma
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Araujo, J., Nikolaou, S., Alexiou, A.D.P. et al. Synthesis of a trinuclear ruthenium cluster containing pyridine and 4-acetylpyridine ligands and its immobilization on functionalized silica. Monatsh Chem 128, 759–766 (1997). https://doi.org/10.1007/BF00807086

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  • DOI: https://doi.org/10.1007/BF00807086

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