Synthesis and characterization of a sensitive and selective Fe3+ fluorescent sensor based on novel sulfonated calix[4]arene-based host-guest complex

被引:18
|
作者
Cen, Ran [1 ]
Liu, Ming [1 ]
Lu, Jihong [1 ]
Zhang, Weifang [1 ]
Dai, Jingjing [1 ]
Zeng, Xi [1 ]
Tao, Zhu [1 ]
Xiao, Xin [1 ]
机构
[1] Guizhou Univ, Key Lab Macrocycl & Supramol Chem Guizhou Prov, Guiyang 550025, Peoples R China
基金
中国国家自然科学基金;
关键词
Calixarenes; Rhodamine B; Metal ions; Fluorescence probe; Host-guest chemistry; METAL-IONS; MG;
D O I
10.1016/j.cclet.2021.12.005
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
A novel fluorescent sensor was prepared from sulfonated calix[4]arene (SC4A) by the host-guest complexation method using the fluorescent dye rhodamine B (RB) as a structure-directing agent. The crystal structure of the host-guest complex (RB@(SC4A)(3)) was confirmed by X-ray diffraction studies while its performance and sensing mechanism for metal ion pollutants were characterized using fluorescence and nuclear magnetic resonance spectroscopies. The results showed that RB@(SC4A)(3) had a triangular branch structure resulting from host-guest mediation of the interactions between the three SC4A host molecules and the three terminal groups of the guest molecule RB. The host-guest complex exhibited sensitive and selective sensing towards Fe3+ ions via a fluorescence quenching mechanism. The results indicated that RB@(SC4A)(3) could be a promising sensitive and selective fluorescent sensor for metal ion pollutants monitoring. It also provided new insights into the synthesis of calixarene-based host-guest complex. (C) 2021 Published byElsevier B.V. on behalf of Chinese Chemical Society and Institute of Materia Medica, Chinese Academy of Medical Sciences.
引用
收藏
页码:2469 / 2472
页数:4
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