Synthesis of a Linked [1]–[1]Rotaxane

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  • Susumu Tsuda
    Department of Applied Chemistry, Graduate School of Engineering, Osaka University
  • Jun Terao
    Department of Energy and Hydrocarbon Chemistry, Graduate School of Engineering, Kyoto University
  • Keisuke Tsurui
    Department of Applied Chemistry, Graduate School of Engineering, Osaka University
  • Nobuaki Kambe
    Department of Applied Chemistry, Graduate School of Engineering, Osaka University

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<jats:title>Abstract</jats:title> <jats:p>Highly organic soluble [1]–[1]rotaxane also known as linked [3]rotaxane was synthesized by intramolecular self-inclusion of a modified permethylated α-cyclodextrin (PM α-CD) to form a pseudo[1]rotaxane followed by dimerization. The NMR spectroscopy of thus formed rotaxane suggests that the diphenylacetylene units are fully encapsulated by the PM α-CDs. The Stern–Volmer analysis of fluorescence quenching using a viologen analogue shows that the PM α-CDs inhibits electron transfer efficiently suggesting a high coverage ratio of the π-conjugated axle with the PM α-CDs.</jats:p>

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  • Chemistry Letters

    Chemistry Letters 38 (2), 190-191, 2009-02

    Oxford University Press (OUP)

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