Supramolecular aggregate of pillar[5]arene-based Cu(II) coordination complexes as a highly selective fluorescence sensor for nitroaromatics and metal ions
Supramolecular aggregate of pillar[5]arene-based Cu(II) coordination complexes as a highly selective fluorescence sensor for nitroaromatics and metal ions
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DOI：
10.1016/j.dyepig.2022.110968
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发表时间：
2023-02
影响因子：
4.5
通讯作者：
Dongyan Yu;Wenting Deng;Xueqin Wei
中科院分区：
文献类型：
--
作者：
Dongyan Yu;Wenting Deng;Xueqin Wei
合成了由柱[5]芳烃基Cu(II)配位配合物自组装而成的荧光超分子聚集体1。通过傅里叶变换红外光谱（FTIR）、X射线光电子能谱（XPS）、能量色散X射线光谱（EDS）、扫描电子显微镜（SEM）、紫外可见光谱和荧光光谱对超分子聚集体进行了表征。超分子聚集体1对硝基芳香族化合物（NAC）和金属离子表现出高灵敏度和选择性。在各种 NAC 和金属离子中，1 的发射仅通过添加对硝基苯酚 (PNP) 和 Fe3+ 显着猝灭，检测限 (LOD) 值分别为 0.39 μM 和 4.9 μM。详细讨论了荧光猝灭的可能机制。此外，该方法还可用于湖水中PNP和Fe3+的检测。
A fluorescent supramolecular aggregate1that self-assembled from pillar [5]arene-based Cu(II) coordination complexes was synthesized. The supramolecular aggregate1was characterized by Fourier transformed infrared (FTIR) spectroscopy, X-ray photoelectron spectroscopy (XPS), Energy-dispersive X-ray spectroscopy (EDS), Scanning electron microscopy (SEM), UV–vis spectroscopy and fluorescence spectroscopy. The supramolecular aggregate1exhibited high sensitivity and selectivity to nitroaromatic compounds (NACs) and metal ions. Among the various NACs and metal ions, the emission of1was exclusively and significantly quenched by the addition ofp-nitrophenol (PNP) and Fe3+, exhibiting a low limit of detection (LOD) value of 0.39 μM and 4.9 μM, respectively. The possible mechanisms of fluorescence quenching were discussed in detail. Furthermore, the method could be applied to detect the PNP and Fe3+in lake water.