A simple quinoline-based fluorescent "turn on'' probe with high selectivity for Ag+ in aqueous media

被引：23
|
作者：
Chen, Chang-Juan [1 ]
Zhang, Ai-Jiang [1 ]
Hu, Jiang-Bo [1 ]
Miao, Yu-Hang [1 ]
Liu, Xiang [2 ]
机构：
[1] Huanghuai Univ, Dept Chem & Chem Engn, Zhumadian 463000, Peoples R China
[2] Lanzhou Univ, Coll Chem & Chem Engn, Lanzhou 730000, Peoples R China
来源：
INORGANICA CHIMICA ACTA | 2015年 / 435卷
基金：
中国国家自然科学基金;
关键词：
Fluorescent probe; Turn on; Quinoline; Silver ion; Crystal structure; ZINC SENSOR; METAL-IONS; SILVER; CHEMOSENSOR; WATER; 8-HYDROXYQUINOLINE; DESIGN; HG2+; ELECTRODE; PYRENE;
D O I：
10.1016/j.ica.2015.06.014
中图分类号：
O61 [无机化学];
学科分类号：
070301 ; 081704 ;
摘要：
A simple quinoline-based fluorescent probe L for Ag+ has been developed. Probe L shows fluorescence enhancement (turn on) response towards Ag+ with high selectivity in aqueous media (methanol-water, v/v = 3: 7, pH 7.2, 20 mM Tris-HCl) based on a combinational effect of the inhibition of intermolecular photoinduced proton transfer and chelation-enhanced fluorescence. And an obvious fluorescent color change could be observed by naked eyes under the light of 365 nm. The binding mode between L and Ag+ has been found to be 1: 1 based on the fluorescence/absorption titration, ESI-MS and further confirmed by X-ray crystallography. (C) 2015 Elsevier B.V. All rights reserved.
引用
收藏
页码：137 / 141
页数：5
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