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

页码：137 / 141

页数：5

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