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首页> 外文期刊>Dalton transactions: An international journal of inorganic chemistry >Water-stable Cd(ii)/Zn(ii) coordination polymers as recyclable luminescent sensors for detecting hippuric acid in simulated urine for indexing toluene exposure with high selectivity, sensitivity and fast response
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Water-stable Cd(ii)/Zn(ii) coordination polymers as recyclable luminescent sensors for detecting hippuric acid in simulated urine for indexing toluene exposure with high selectivity, sensitivity and fast response

机译：水稳定CD（II）/ Zn（II）作为可回收发光传感器的配位聚合物，用于检测模拟尿液中的羊皮酸，用于分配甲苯暴露，具有高选择性，灵敏度和快速反应

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摘要

Three novel Cd(ii)/Zn(ii) coordination polymers (CPs), namely [Cd(L)(BPDC)(0.5)H2O].0.5H(2)O (1), [Zn-2(L)(2)(BPDC)].2H(2)O (2) and [Cd-2(L)(BTC)H2O].3H(2)O (3) (L = 4-(tetrazol-5-yl)phenyl-4,2 ':6 ',4 ''-terpyridine, H2BPDC = 4,4 '-biphenyldicarboxylic acid, and H3BTC = 1,3,5-benzenetricarboxylic acid), have been successfully synthesized and characterized. CP 1 and CP 2 display new two-dimensional double-layered honeycomb frameworks containing uncoordinated nitrogen atoms from pyridine and tetrazole rings, which can easily form hydrogen bonds with various analytes. CP 3 exhibits a 3D framework also with uncoordinated nitrogen atoms from pyridine and tetrazole rings. The fluorescence explorations indicate that CPs 1-3 exhibit strong blue luminescence and excellent chemical stability under a relatively wide range of pH conditions. It is worth noting that CPs 1-3 can quantitatively detect hippuric acid (HA), which is a metabolite of toluene in human urine, with high selectivity, sensitivity, fast response and relatively low detection limits. Moreover, the sensing mechanism of CPs 1-3 for HA can mainly be ascribed to fluorescence resonance energy transfer (FRET). CPs 1-3 could be ideal candidates as HA sensors in human urine samples for practical applications. Notably, to the best of our knowledge, we report for the first time Cd(ii)/Zn(ii)-based luminescent sensors for detecting HA in simulated urine.
机译：三种新型的Cd（ii）/Zn（ii）配位聚合物（CPs），即[Cd（L）（BPDC）（0.5）H2O]、0.5H（2）O（1）、[Zn-2（L）（BPDC）]、2H（2）O（2）和[Cd-2（L）（BTC）H2O]、3H（2）O（3）（L=4-（四唑-5-基）苯基-4,2'：6'，4'-三吡啶、H2BPDC=4,4'-联苯二甲酸和H3BTC=1,3,5-苯甲酸）已被成功合成和表征。CP 1和CP 2显示了新的二维双层蜂窝状框架，其中包含吡啶环和四唑环中的未配位氮原子，很容易与各种分析物形成氢键。CP3还展示了一个3D框架，其中含有来自吡啶环和四唑环的未配位氮原子。荧光探测表明，CPs 1-3在相对较宽的pH条件下表现出较强的蓝色发光和优异的化学稳定性。值得注意的是，CPs 1-3可以定量检测马尿酸（HA），这是人体尿液中甲苯的代谢物，具有高选择性、灵敏度、快速响应和相对较低的检测限。此外，CPS1-3对HA的传感机制主要可归因于荧光共振能量转移（FRET）。CPs 1-3可能是实际应用中人类尿液样本中HA传感器的理想候选。值得注意的是，据我们所知，我们首次报道了用于检测模拟尿液中HA的基于Cd（ii）/Zn（ii）的发光传感器。

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    Zhao Jiao-Jiao; Zhang Lei; Liu Peng-Yu; Chen Wei-Zhe; Liu Zhi-Liang; Wang Yan-Qin;

  • 作者单位

    Inner Mongolia Univ Coll Chem &

    Chem Engn Inner Mongolia Key Lab Chem &

    Phys Rare Earth Mat Hohhot 010021 Peoples R China;

    Inner Mongolia Univ Coll Chem &

    Chem Engn Inner Mongolia Key Lab Chem &

    Phys Rare Earth Mat Hohhot 010021 Peoples R China;

    Inner Mongolia Univ Coll Chem &

    Chem Engn Inner Mongolia Key Lab Chem &

    Phys Rare Earth Mat Hohhot 010021 Peoples R China;

    Inner Mongolia Univ Coll Chem &

    Chem Engn Inner Mongolia Key Lab Chem &

    Phys Rare Earth Mat Hohhot 010021 Peoples R China;

    Inner Mongolia Univ Coll Chem &

    Chem Engn Inner Mongolia Key Lab Chem &

    Phys Rare Earth Mat Hohhot 010021 Peoples R China;

    Inner Mongolia Univ Coll Chem &

    Chem Engn Inner Mongolia Key Lab Chem &

    Phys Rare Earth Mat Hohhot 010021 Peoples R China;

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  • 中图分类 化学;无机化学;
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