The Os 2+ functionalised pyrrole monomer, Osmium-bis-N,N'-(2,2'-bipyridyl)-N-(pyridine-4-ylmethyl-(8-pyrrole-1yl-octyl)-amine)chloride, 1, has been synthesised and characterised by spectroscopic (UV/Vis, 1 H NMR, IR spectroscopy) techniques and cyclic voltammetry.Solution phase studies of 1 gave a redox couple associated with the Os 3+/2+ and an irreversible wave associated with the oxidation of the pyrrole moiety. Attempts to form stable polymeric films of 1 onto vitreous carbon electrodes, by homopolymerisation, proved unsuccessful. However electroactive films of 1 were obtained by the electrooxidation of 1 through the Os 3+/2+ couple in low dielectric media such as toluene/acetonitrile mixtures.
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