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Non-Covalent Functionalization of Individual Nanotubes with Spiropyran-Based Molecular Switches

机译：基于螺吡喃的分子开关的单个纳米管的非共价功能化。

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摘要

Single-walled carbon nanotubes (SWCNTs) are functionalized with a spiro-pyran derivative, which is attached non-covalently to the SWCNT's sidewall via a pyrene anchor group. Using this non-covalent functionalization strategy, individual SWCNTs can be stabilized in solution without the need for additional surfactants. Bright luminescence confirms the presence of individual tubes in the thus-prepared samples. In these samples, the majority of pyrene-spiropyran molecules are attached to the walls of the SWCNTs. Upon complex formation with the SWCNT, the switching moiety retains its ability to switch, i.e., to undergo reversible transformations between the closed spiropyran and the opened merocyanine form, and is stable over many cycles of operation.
机译：单壁碳纳米管（SWCNT）用螺吡喃衍生物官能化，该衍生物通过a锚定基团非共价附于SWCNT的侧壁。使用这种非共价官能化策略，可以在溶液中稳定各个SWCNT，而无需其他表面活性剂。明亮的发光证实了如此制备的样品中存在单个管。在这些样品中，大多数-螺吡喃分子附着在SWCNT的壁上。与SWCNT形成复合物时，转换部分保持其转换能力，即在封闭的螺吡喃和开放的花菁形式之间进行可逆转化，并且在许多操作循环中是稳定的。

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  • 来源
    《Advanced Functional Materials》 |2012年第11期|p.2425-2431|共7页
  • 作者

    Antonio Setaro; Pascal Bluemmel; Chandan Maity; Stefan Hecht; Stephanie Reich;

  • 作者单位

    Department of Physics of the Freie Universitaet Berlin Arnimallee 14, 14195 Berlin;

    Department of Physics of the Freie Universitaet Berlin Arnimallee 14, 14195 Berlin;

    Department of Chemistry of the Humboldt- Universitaet zu Berlin Brook-Taylor-Str. 2, 12489 Berlin;

    Department of Chemistry of the Humboldt- Universitaet zu Berlin Brook-Taylor-Str. 2, 12489 Berlin;

    Department of Physics of the Freie Universitaet Berlin Arnimallee 14, 14195 Berlin;

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