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首页> 外文期刊>RSC Advances >Highly sensitive detection of low-level water content in organic solvents and cyanide in aqueous media using novel solvatochromic AIEE fluorophores
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Highly sensitive detection of low-level water content in organic solvents and cyanide in aqueous media using novel solvatochromic AIEE fluorophores

机译：使用新型溶剂素AIEE荧光团在含水介质中有机溶剂和氰化物中低水平含水量的高敏感性检测

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摘要

A great deal of effort has been devoted to develop easy-to-use fluorescent probes for detecting analytes due to their advantages in the field of chemo- and bio-sensing. Herein, two novel 2,2 '-biindenyl-based derivatives BDM and BDBM containing dicyanovinyl groups have been designed and synthesized, and are shown to possess the remarkable dual properties of solvatochromism and aggregation-induced emission enhancement (AIEE). Importantly, both of them are found to serve as fluorescent indicators for the qualitative and quantitative detection of low-level water in organic solvents. Meanwhile, both BDM and BDBM emit yellowish orange and orange fluorescence, respectively, in their aggregated states. Furthermore, with dicyanovinyl groups as the recognition sites, both compounds can act as colourimetric and fluorescent sensors for highly sensitive and selective detection of cyanide in aqueous media, and the apparent response signals can be observed by the naked eye even in the presence of various interference anions, promising practical applications for detecting cyanide in drinking water. Besides, optical spectroscopic techniques, NMR titration measurements, and density functional theory calculations are conducted to rationalize the sensing mechanisms of the two probes.
机译：由于其在化学和生物传感领域，已经致力于开发易于使用的荧光探头来开发易于使用的荧光探针，用于检测分析物。在此，已经设计和合成了两种新的2,2'-比基茚基的基于二环烷基的衍生物BDM和BDBM和BDBM，并且被证明具有显着的溶剂溶解度和聚集诱导的发射增强（AIEE）的卓越双重性质。重要的是，发现它们两者都是用作有机溶剂中低水平水的定性和定量检测的荧光指示剂。同时，BDM和BDBM都分别在其聚集状态中发出淡黄色和橙色荧光。此外，用二氰基乙烯基作为识别位点，两种化合物可以用作Colourecetric和荧光传感器，用于高度敏感和选择性地检测氰化物在水性介质中，并且即使在各种干扰存在下也可以通过肉眼观察表观响应信号阴离子，希望在饮用水中检测氰化物的实际应用。此外，进行光学光谱技术，NMR滴定测量和密度泛函理论计算以合理化两种探针的传感机制。

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  • 来源
    《RSC Advances》 |2015年第16期|共11页
  • 作者

    Chen Wei; Zhang Zhiyun; Li Xin; Agren Hans; Su Jianhua;

  • 作者单位

    E China Univ Sci &

    Technol Key Lab Adv Mat Shanghai 200237 Peoples R China;

    E China Univ Sci &

    Technol Key Lab Adv Mat Shanghai 200237 Peoples R China;

    KTH Royal Inst Technol Div Theoret Chem &

    Biol Sch Biotechnol S-10691 Stockholm Sweden;

    KTH Royal Inst Technol Div Theoret Chem &

    Biol Sch Biotechnol S-10691 Stockholm Sweden;

    E China Univ Sci &

    Technol Key Lab Adv Mat Shanghai 200237 Peoples R China;

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  • 正文语种 eng
  • 中图分类 化学;
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