New robust 2D cobalt (II) coordination polymer as an effective turn-on luminescent sensor to detect Tb3+ and pefloxacin

被引：0
|
作者：
Wang H. [1 ]
Fu L. [2 ]
Cui G.-H. [1 ]
机构：
[1] Hebei Key Laboratory for Environment Photocatalytic and Electrocatalytic Materials, College of Chemical Engineering, North China University of Science and Technology, No. 21 Bohai Road, Caofeidian new-city, Hebei, Tangshan
[2] Department of Physics, CICECO-Aveiro Institute of Materials, University of Aveiro, Aveiro
来源：
Journal of Molecular Structure | 2024年 / 1316卷
关键词：
Coordination polymer; Fluorescence enhancement; Mixed-ligand; Pefloxacin; Tb[!sup]3+[!/sup;
D O I：
10.1016/j.molstruc.2024.139025
中图分类号：
学科分类号：
摘要：
It is necessary to employ highly sensitive and rapid detection of antibiotics and heavy ions in the environment. A mixed-ligands ternary Co (II) coordination polymer containing new L ligands, {[Co(L)(mip)(H2O)]·2H2O}n (1), (L = 2,2′-bis-(2-pyridin-3-yl-vinyl)-3H,3′H-[5,5]bibenzoimidazole, H2mip= 5-methylisophthalic acid) was synthesized under solvothermal condition. Compound 1 displays a sql 2D layer with the point symbol of {44.62}. Compound 1 owns excellent thermal and pH stability and can effectively sensitize the luminescence of Tb3+ ions through the “antenna effect”. Compound 1 can serve as luminescent probe for detecting pefloxacin and Tb3+ with low detection limits. Especially Compound 1 is the first turn-on sensor for the detecting Tb3+ ions and pefloxacin via fluorescence enhancement. In addition, the sensing mechanism is discussed in detail. © 2024 Elsevier B.V.
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