Electroactive chain-like compounds constructed from trimetallic clusters and 4,4′-bipyridine spacers: One-pot synthesis, characterization and surface binding

Masaaki Abe, Atsushi Inatomi, Yoshio Hisaeda

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Abstract

This paper reports the synthesis and characterization of a novel series of chain-like compounds where oxo-centered triruthenium cluster moieties are bridged by 4,4′-bipyridine (4,4′-bpy) spacers. A reaction of solvent-coordinated triruthenium "monomer" precursor [Ru 3O(CH3CO2)6(CO)(CH 3OH)2] with a 0.1 equimolar amount of 4,4′-bpy in CH3OH gave mixture of chain-like compounds containing "dimers" to "tetramers" which were cleanly separated by column chromatography and characterized by spectroscopic and electrochemical methods. Cyclic voltammetry revealed that all chain-like compounds exhibit reversible and stepwise redox processes in solution with very weak intramolecular coupling between the triruthenium components across the 4,4′-bpy bridge. Photo-induced dissociation of CO from the compounds and electrode surface binding were also investigated.

Original languageEnglish
Pages (from-to)2289-2298
Number of pages10
JournalDalton Transactions
Volume40
Issue number10
DOIs
Publication statusPublished - Mar 14 2011

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All Science Journal Classification (ASJC) codes

  • Inorganic Chemistry

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