Polyazulenes and Polybiazulenes: Chiroptical Switching and Electron Transfer Properties of Structurally Segmented Systems

Authors

  • DR. Michael Porsch,

    1. Institut für Organische Chemie, Universität Regensburg Universitätsstrasse 31, D-93040 Regensburg (Germany)
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  • DR. Gabriele Sigl-Seifert,

    1. Institut für Organische Chemie, Universität Regensburg Universitätsstrasse 31, D-93040 Regensburg (Germany)
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  • Prof. Jörg Daub

    Corresponding author
    1. Institut für Organische Chemie, Universität Regensburg Universitätsstrasse 31, D-93040 Regensburg (Germany)
    • Institut für Organische Chemie, Universität Regensburg Universitätsstrasse 31, D-93040 Regensburg (Germany)
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  • This work was supported by the Bayerische Staatsregierung (Sonder-programm für Infrastrukturmassnahmen) and Fonds der Chemischen Industrie, Frankfurt (Main).

Abstract

The characterization of polyazulenes is reported with regard to two main aspects. First, results of circular dichroism spectroelectrochemistry of a carbohydrate-modified azulene indicate that structural reorganization and chiroptical switching occur on oxidative doping. Second, the investigation of phenylene/azulene polymeric films with meta- or para-phenylenes as bridging units provides information about electron transport and shows that phenylenic bridging allows structurally separated electron-transfer-active subunits to be created within the polymeric chain.

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