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首页> 外文期刊>Crystal growth & design >Tetraphenylethylene Immobilized Metal-Organic Frameworks: Highly Sensitive Fluorescent Sensor for the Detection of Cr2O72- and Nitroaromatic Explosives
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Tetraphenylethylene Immobilized Metal-Organic Frameworks: Highly Sensitive Fluorescent Sensor for the Detection of Cr2O72- and Nitroaromatic Explosives

机译：四苯基乙烯固定化金属 - 有机框架：高度敏感的荧光传感器，用于检测CR2O72-和硝基氨爆炸物

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摘要

From the perspective of the chromophore, 1,1,2,2-tetrakis(4-(pyridin-4-yl)phenyl)ethane (TPPE) with the pi-electron-rich tetraphenylethylene (TPE) and aggregation induced emission feature is selected as functional ligand to construct the fluorescent metal-organic frameworks. Three luminescent MOFs (1-3) have been successfully synthesized. Through combining 4,4 ',4 ''-nitrilotrisbenzoic acid (H3TNB) with electron-donor triphenylamine (TPA), the highly porous pillared-layer compound 1 [Zn-3(TPPE)(1/2)(TNB)(2)](4DMA center dot 7H(2)O) was synthesized; interestingly, this MOF sensor film realizes the fast detection for nitrobenzene compounds with a response time of less than 3 min as well as good recyclability. Compound 2 [Zn-7(TPPE)(2)(SO42-)(7)](DMF center dot H2O) exhibits the clear "turn-off" quenching responses for Cr2O72- in aqueous phase with high selectivity and sensitivity. Meanwhile, the fluorescent properties of compound 3 [Zn-2(TPPE)(3/2)(NO3-)(OH-)(H2O)](DMF center dot 2H(2)O) were also investigated. Thus, these MOF materials could serve as the promising platform for luminescent sensing.
机译：从发色团的角度来看，选择1,1,2,2-四（4-（吡啶-4-基）苯基）乙烷（TPPE）与富含PI-电子的四苯基乙烯（TPE）和聚集诱导的发射特征作为功​​能性配体，构建荧光金属 - 有机骨架。已经成功地合成了三个发光MOF（1-3）。通过将4,4'，4''-硝基苯甲酸（H3TNB）与电子 - 供体三苯胺（TPA）组合，高度多孔柱层化合物1 [Zn-3（TPPE）（1/2）（TNB）（2 ）]（合成4dma中心点7h（2）o）;有趣的是，这种MOF传感器膜实现了硝基苯化合物的快速检测，响应时间小于3分钟以及良好的再循环性。化合物2 [Zn-7（TPPE）（2）（2）（SO 42 - ）（7）]（DMF中心点H2O）表现出具有高选择性和敏感性的水相对于水相的透明“关断”淬火反应。同时，还研究了化合物3 [Zn-2（TPPE）（3/2）（3/2）（NO 3 - ）（OH-）（H2O）]（DMF中心点2H（2））的荧光特性。因此，这些MOF材料可以作为发光感测的有希望的平台。

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  • 来源
    《Crystal growth & design》 |2017年第11期|共8页
  • 作者

    Wu Xiao-Xia; Fu Hong-Ru; Han Min-Le; Zhou Zhan; Ma Lu-Fang;

  • 作者单位

    Zhengzhou Univ Coll Chem &

    Mol Engn Zhengzhou 450001 Henan Peoples R China;

    Luoyang Normal Univ Coll Chem &

    Chem Engn Herman Prov Funct Oriented Porous Mat Key Lab Luoyang 471934 Peoples R China;

    Luoyang Normal Univ Coll Chem &

    Chem Engn Herman Prov Funct Oriented Porous Mat Key Lab Luoyang 471934 Peoples R China;

    Luoyang Normal Univ Coll Chem &

    Chem Engn Herman Prov Funct Oriented Porous Mat Key Lab Luoyang 471934 Peoples R China;

    Zhengzhou Univ Coll Chem &

    Mol Engn Zhengzhou 450001 Henan Peoples R China;

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  • 正文语种 eng
  • 中图分类 晶体学;
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