Single chemosensor for sensing multiple analytes: Selective fluorogenic detection of Cu2+ and Br-

被引：18
|
作者：
Ko, Yoon Gun [1 ]
Mayank [2 ]
Singh, Narinder [2 ]
Jang, Doo Ok [1 ]
机构：
[1] Yonsei Univ, Dept Chem, Wonju 26493, South Korea
[2] Indian Inst Technol Ropar, Dept Chem, Rupnagar 140001, Punjab, India
来源：
TETRAHEDRON LETTERS | 2018年 / 59卷 / 43期
关键词：
Tripodal; Copper; Bromide; Fluorescence; Chemosensor; Receptor; RECOGNITION; RECEPTOR; COPPER; TOXICITY; BROMIDE; IODIDE; CATION;
D O I：
10.1016/j.tetlet.2018.09.024
中图分类号：
O62 [有机化学];
学科分类号：
070303 ; 081704 ;
摘要：
A tripodal receptor R1 with a combination of nitrogen and oxygen-based binding sites was designed and used for the selective determination of Cu2+. The fluorescence emission profile of R1 in the presence of Cu2+ showed a marked enhancement in fluorescence intensity, indicating high selectivity among other metal ions. The R1-Cu2+ complex was further explored as a sensor for anion detection. Upon addition of Br-, switching to a fluorescence "off" state was observed. The Br- selectivity of the complex over a wide range of concentrations was observed via titrimetric analysis through changes in the emission spectra. (C) 2018 Elsevier Ltd. All rights reserved.
引用
收藏
页码：3839 / 3844
页数：6
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