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Title: Cyclic voltammetry of benzo-15-crown-5 ether-vinyl-bipyridyl ligands, their ruthenium(II) complexes and bismethoxyphenyl-vinyl–bipyridyl ruthenium(II) complexes. Electrochemical polymerization studies and supporting electrolyte effects
Authors: Beer, Paul D.
Kocian, Oldrich
Mortimer, Roger J.
Ridgway, Christopher
Issue Date: 1993
Publisher: © The Royal Society of Chemistry
Citation: BEER, P.D. ... et al, 1993. Cyclic voltammetry of benzo-15-crown-5 ether-vinyl-bipyridyl ligands, their ruthenium(II) complexes and bismethoxyphenyl-vinyl–bipyridyl ruthenium(II) complexes. Electrochemical polymerization studies and supporting electrolyte effects. Journal of the Chemical Society, Faraday Transactions, 89 (2), pp. 333 - 338
Abstract: The cyclic voltammetry of benzo-15-crown-5 ether-vinyl-bipyridyl ligands, their ruthenium(II) complexes and the ‘model’ bismethoxyphenyl-vinyl-bipyridyl ligand ruthenium(II) complexes has been investigated in acetonitrile. The benzo-15-crown-5 ether units of the solution complexes are sensitive to supporting electrolyte, being more difficult to electro-oxidize on binding of sodium or magnesium cations. The tris(ligand) ruthenium(II) complexes can be reductively electropolymerized to form smooth, adherent electroactive orange films. For these electropolymerized films, the benzo-15-crown-5 ether irreversible electro-oxidation is electrocatalysed by RuIII sites and is only observed on the first cyclic voltammogram. RuIII/II redox potentials are insensitive to changes in the supporting electrolyte, apparent differences being due to variable liquid-junction potentials at the interface between the reference electrode and the supporting electrolyte solutions. Electropolymerized bismethoxyphenyl-vinyl-bipyridyl ligand ruthenium(II) complex films exhibit transparent/orange electrochromicity.
Description: This article is closed access, it was published in the serial Journal of the Chemical Society, Faraday Transactions [© The Royal Society of Chemistry]. The definitive version is available at: http://dx.doi.org/10.1039/ft9938900333
Version: Published
DOI: 10.1039/ft9938900333
URI: https://dspace.lboro.ac.uk/2134/11453
Publisher Link: http://dx.doi.org/10.1039/ft9938900333
ISSN: 0956-5000
Appears in Collections:Closed Access (Chemistry)

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