State Key Laboratory Base of Novel Functional Materials and Preparation Science, Chemistry Institute for Synthesis and Green Application, School of Materials Science & Chemical Engineering, Ningbo University, Ningbo, Zhejiang, 315211, China.
Chem Asian J. 2019 Dec 2;14(23):4246-4254. doi: 10.1002/asia.201901124. Epub 2019 Oct 21.
A new coordination polymer (H bpy) ⋅[(UO ) (ipa) (H O)] (1) (H ipa=isophthalic acid, bpy=4,4'-bipyridine) was synthesized by hydrothermal condition. It was characterized by IR spectroscopy, elemental analysis, TG-DTA analysis, and powder X-ray diffraction. Analysis of single-crystal X-ray diffraction results showed that the title compound exhibited a double chain bridged by the different uranyl ions and ipa ligands. Through the hydrogen bond interactions and π⋅⋅⋅π stacking interactions, the double chains were assembled into the three-dimensional supramolecular framework. Furthermore, the compound can be used as a promising bifunctional luminescence sensor for detecting and identifying Fe and tetracycline hydrochloride antibiotic molecules with high selectivity and sensitivity in aqueous solutions. Moreover, the luminescent sensing mechanisms for different analytes were proposed. Moreover, the electronic properties of title compound were explored by density functional theory (DFT) calculations. The sensor system has been successfully applied for the detection of Fe and tetracycline hydrochloride with high recovery percentages and low relative standard deviation in real river water samples.
一种新的配位聚合物（H bpy）⋅[(UO 2)（ipa）（H 2 O)]（1）（H ipa=异苯二甲酸，bpy=4,4'-联吡啶）通过水热条件合成。通过红外光谱、元素分析、热重-差热分析和粉末 X 射线衍射对其进行了表征。单晶 X 射线衍射结果分析表明，标题化合物表现为通过不同的铀酰离子和 ipa 配体桥接的双链。通过氢键相互作用和π···π堆积相互作用，双链组装成三维超分子框架。此外，该化合物可用作一种有前途的双功能发光传感器，用于在水溶液中以高选择性和灵敏度检测和识别 Fe 和盐酸四环素抗生素分子。此外，还提出了针对不同分析物的发光传感机制。此外，还通过密度泛函理论（DFT）计算研究了标题化合物的电子性质。该传感器系统已成功应用于实际河水样品中 Fe 和盐酸四环素的检测，回收率高，相对标准偏差低。
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