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Organic charge-transfer (CT) salts have been of interest for some years, especially since the discovery of the metallic conductivity of the TTF-TCNQ salt. The authors have begun an investigation of the charge-transfer chemistry of viologens and pyromellitimides, based on their complementary redox properties, with the intention of proceeding from intermolecular examples to intramolecular CT salts and finally to examples in which the viologens and pyromellitimides are incorporated in a polymer. They report progress in the first two stages of this investigation, including isolation of a new, highly conductive intermolecular CT salt and electrochemical characterization of a covalently linked viologen/pyromellitimide. These studies point to an interesting new class of organic solid-state materials. |
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