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Single-Crystal-to-Single-Crystal Transformation of a Europium(lll) Metal-Organic Framework Producing a Multi-responsive Luminescent Sensor

机译:((lll)金属有机框架的单晶到单晶转换,产生多响应发光传感器

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摘要

A sensor with a red-emission signal is successfully obtained by the solvothermal reaction of Eu~(3+) and heterofunctional ligand bpydbH_2 (4,4'-(4,4'-bipyridine-2,6-diyl) dibenzoic acid), followed by terminal-ligand exchange in a single-crystal-to-single-crystal transformation. As a result of treatments both before and after the metal-organic framework formation, accessible Lewis-base sites and coordinated water molecules are successfully anchored onto the host material, and they act as signal transmission media for the recognition of analytes at the molecular level. This is the first reported sensor based on a metal-organic framework (MOF) with multi-responsive optical sensing properties. It is capable of sensing small organic molecules and inorganic ions, and unprecedentedly it can discriminate among the homologues and isomers of aliphatic alcohols as well as detect highly explosive 2,4,6-trinitrophenol (TNP) in water or in the vapor phase. This work highlights the practical application of luminescent MOFs as sensors, and it paves the way toward other multi-responsive sensors by demonstrating the incorporation of various functional groups into a single framework.
机译:通过Eu〜(3+)与杂功能配体bpydbH_2(4,4'-(4,4'-联吡啶-2,6-二基)二苯甲酸)的溶剂热反应成功获得了具有红色发射信号的传感器,然后在单晶到单晶转化中进行末端配体交换。由于在金属有机骨架形成之前和之后的处理,可接近的Lewis碱基位点和配位的水分子成功地锚固在主体材料上,它们充当了信号传输介质,可在分子水平上识别分析物。这是第一个报告的基于金属有机框架(MOF)的传感器,具有多响应光学感应特性。它能够检测小的有机分子和无机离子,并且能够以前所未有的方式区分脂肪醇的同系物和异构体,并能检测出水中或气相中的高爆炸性2,4,6-三硝基苯酚(TNP)。这项工作强调了发光MOF作为传感器的实际应用,并通过证明将各种功能基团合并到单个框架中,为其他多响应传感器铺平了道路。

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  • 来源
    《Advanced Functional Materials》 |2014年第26期|4034-4041|共8页
  • 作者单位

    State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied Chemistry Chinese Academy of Sciences 5625 Renmin Street, Changchun 130022, China,University of Chinese Academy of Sciences Beijing 100049, China;

    State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied Chemistry Chinese Academy of Sciences 5625 Renmin Street, Changchun 130022, China;

    State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied Chemistry Chinese Academy of Sciences 5625 Renmin Street, Changchun 130022, China,University of Chinese Academy of Sciences Beijing 100049, China;

    State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied Chemistry Chinese Academy of Sciences 5625 Renmin Street, Changchun 130022, China,University of Chinese Academy of Sciences Beijing 100049, China;

    State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied Chemistry Chinese Academy of Sciences 5625 Renmin Street, Changchun 130022, China,University of Chinese Academy of Sciences Beijing 100049, China;

    State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied Chemistry Chinese Academy of Sciences 5625 Renmin Street, Changchun 130022, China,University of Chinese Academy of Sciences Beijing 100049, China;

    State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied Chemistry Chinese Academy of Sciences 5625 Renmin Street, Changchun 130022, China,University of Chinese Academy of Sciences Beijing 100049, China;

    State Key Laboratory of Rare Earth Resource Utilization Changchun Institute of Applied Chemistry Chinese Academy of Sciences 5625 Renmin Street, Changchun 130022, China;

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