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首页> 外文期刊>Chemistry: A European journal >Fluorographene Modified by Grignard Reagents: A Broad Range of Functional Nanomaterials
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Fluorographene Modified by Grignard Reagents: A Broad Range of Functional Nanomaterials

机译：由格氏试剂改性的荧光蛋白质：各种功能性纳米材料

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摘要

Fluorographene is the youngest stoichiometric derivative of graphene; hence, its reactivity is only poorly explored. Compared to graphene, the significantly higher reactivity of C-F bonds makes this material a suitable platform for a large number of chemical modifications. Fluorographene is also the only member of the halographene family that can be prepared in the stoichiometric composition (C_1F_1). Herein, the chemical modification of fluorographene with Grignard reagents, which are well known in organic synthesis for the formation of new C-C bonds, is presented. The reaction with alkyl magnesium bromides led to successful modification of fluorographene with ethyl, vinyl, ethynyl and propargyl groups. Chemical characterisation showed the presence of covalently bonded functional groups in a high concentration exceeding one functional group per C_6 motif. The reactivity of Grignard reagents with fluorographene decreased from ethyl to ethynyl. The terminal carbon-carbon triple bonds were used for click reactions with organic azides leading to the formation of triazole rings. These findings open up a broad spectrum of opportunities for simple and robust modification of graphene by chemical reactions proceeding at room temperature under mild conditions. These results have major application potential in sensing, biomedical and energy-related applications.
机译：荧光表是石墨烯最小的化学计量衍生物;因此，它的反应性才探索着差劲。与石墨烯相比，C-F键的显着更高的反应性使得该材料成为大量化学修饰的合适平台。荧光素也是咔啉族的唯一成员，可在化学计量组合物（C_1F_1）中制备。这里，提出了一种荧光素的化学改性，其具有格子试剂，其在有机合成中众所周知的用于形成新的C-C键。将与烷基镁溴化物的反应导致用乙基，乙烯基，乙炔基和丙基乙基的荧光蛋白成功改变。化学表征显示，在高浓度下存在共价键合的官能团超过每C_6基序的一个官能团。 GRIGNARD试剂与荧光蛋白的反应性从乙酸乙酯中降低。末端碳 - 碳三键用于用有机叠氮化物点击反应，导致三唑环的形成。这些调查结果开辟了广泛的机会，通过在温和条件下在室温下进行化学反应来简单和鲁棒修改石墨烯。这些结果具有传感，生物医学和能源相关应用的主要应用潜力。

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  • 来源
    《Chemistry: A European journal》 |2017年第8期|共9页
  • 作者

    Vlastimil Mazánek; Alena Libánská; Ji?í ? turala; Daniel Bou?a; David Sedmidubsky; Martin Pumera; Zbyněk Janou?ek; Jan Plutnar; Zdeněk Sofer;

  • 作者单位

    Department of Inorganic Chemistry University of Chemistry and Technology Prague Technická 5 166 28 Prague 6 (Czech Republic);

    Department of Inorganic Chemistry University of Chemistry and Technology Prague Technická 5 166 28 Prague 6 (Czech Republic);

    Department of Organic Chemistry University of Chemistry and Technology Prague 166 28 Prague 6 (Czech Republic);

    Department of Inorganic Chemistry University of Chemistry and Technology Prague Technická 5 166 28 Prague 6 (Czech Republic);

    Department of Inorganic Chemistry University of Chemistry and Technology Prague Technická 5 166 28 Prague 6 (Czech Republic);

    Division of Chemistry &

    Biological Chemistry School of Physical and Mathematical Sciences Nanyang Technological University Nanyang Link 21 Singapore 637371 (Singapore);

    Institute of Organic Chemistry and Biochemistry ASCR v.v.i. Flemingovo nám. 2 166 10 Prague 6 (Czech Republic);

    Institute of Organic Chemistry and Biochemistry ASCR v.v.i. Flemingovo nám. 2 166 10 Prague 6 (Czech Republic);

    Department of Inorganic Chemistry University of Chemistry and Technology Prague Technická 5 166 28 Prague 6 (Czech Republic);

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  • 原文格式 PDF
  • 正文语种 eng
  • 中图分类 应用化学;
  • 关键词

    alkylation; click chemistry; fluorine; graphene; Grignard reagents;

    机译：烷基化;点击化学;氟;石墨烯;格氏试剂;

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