Abstract We report the solvothermal synthesis and fluorescent property of a novel luminescent coordination polymer (LCP) by choosing a new coplanar ligand, 2-(4-(3,5-dicarboxylphenoxy)phenyl) benzimidazole-5-carboylic acid (L). Single-crystal X-ray diffraction analysis reveals that the obtained LCP is formulated as {Cd(L2}n (1) and features a 2D uninodal 4-connected sql/Shubnikov tetragonal plane net with {44.62} topology. Fluorescence experiments suggest that 1 could work as highly sensitive and selective probe for both Cr2O72– and 2,4,6-trinitrophenol in water medium, resisting interferences from a variety of competitive anions or nitroaromatic compounds. The limits of detection for Cr2O72– and TNP in aqueous solutions were calculated to be 0.128 and 0.089 μM, respectively. Just by a simple method, the fluorescent sensing ability of 1 could be regenerated.

中文翻译：

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用于选择性和可回收检测水介质中 TNP 和 Cr2O72- 的多响应发光 Cd(II) 配位聚合物

摘要 我们通过选择一种新的共面配体 2-(4-(3,5-二羧基苯氧基)苯基)苯并咪唑-5-羧基酸 (L) 来报告一种新型发光配位聚合物 (LCP) 的溶剂热合成和荧光性质。单晶 X 射线衍射分析表明，获得的 LCP 被公式化为 {Cd(L2}n (1)，并具有具有 {44.62} 拓扑结构的二维单节点 4-connected sql/Shubnikov 四方平面网络。荧光实验表明 1可作为水介质中 Cr2O72– 和 2,4,6-三硝基苯酚的高灵敏度和选择性探针，抵抗各种竞争性阴离子或硝基芳族化合物的干扰。计算了水溶液中 Cr2O72– 和 TNP 的检测限分别为 0.128 和 0.089 μM。只是通过一个简单的方法，