A colorimetric and fluorescent probe for fluoride anions based on a phenanthroimidazole-cyanine platform

被引：23
|
作者：
Li, Tingting [1 ]
Yu, Liang [1 ]
Jin, Di [1 ]
Chen, Bo [1 ]
Li, Lei [1 ]
Chen, Ligong [1 ]
Li, Yang [1 ]
机构：
[1] Tianjin Univ, Sch Chem Engn & Technol, Tianjin 300072, Peoples R China
来源：
ANALYTICAL METHODS | 2013年 / 5卷 / 06期
关键词：
ION; DYES;
D O I：
10.1039/c3ay26461k
中图分类号：
O65 [分析化学];
学科分类号：
070302 ; 081704 ;
摘要：
A novel compound 4, obtained from 1,2,3,3-tetramethyl-3H-indolium iodide and 2-(4-formylphenyl) phenanthroimidazole, has been demonstrated to be a colorimetric and fluorescent probe for fluoride anions with good sensitivity and high selectivity. In the presence of fluoride anions, this probe exhibits obvious decrease in absorption spectra and fluorescent quenching in emission spectra. Such changes in color and absorbance intensity were attributed to the deprotonation of N-H on the imidazole moiety with fluoride anion.
引用
收藏
页码：1612 / 1616
页数：5
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