Metal ion-prompted pyrene-excimer formation via an anion-mediated process and its application for a ratiometric Zn2+ chemosensor with high selectivity over Cd2+

被引：18

作者：

Baek, Kyungkyu ^{[1
]}

Eom, Min Sik ^{[1
]}

Kim, Sudeok ^{[1
]}

Han, Min Su ^{[1
]}

机构：

[1] Chung Ang Univ, Dept Chem, Seoul 156756, South Korea

来源：

TETRAHEDRON LETTERS | 2013年 / 54卷 / 13期

基金：

新加坡国家研究基金会;

关键词：

Excimer; Zn2+; Ratiometric; Chemosensor; Dimerization; FLUORESCENT CHEMOSENSOR; HINGE SUGAR; SENSORS; RECOGNITION; RECEPTORS; DESIGN; ZINC;

D O I：

10.1016/j.tetlet.2013.01.016

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

The combination of [(2,2'-dipicolylamino)butyl]pyrene (1) and pyrophosphate (PPi) was shown to be functional as a ratiometric Zn2+ ion fluorescent probe. This was changed to Zn2+-1 upon the addition of Zn2+, which was dimerized by a PPi-mediated self-assembly, leading to a relatively strong emission fluorescence with a large bathchromic shift. This chemosensor can detect Zn2+ in an aqueous solution of physiological pH with high selectivity toward Zn2+ over a variety of metal ions, including Cd2+, and has a low detection limit of 0.64 mu M in an aqueous buffer system. (c) 2013 Elsevier Ltd. All rights reserved.

引用

页码：1654 / 1657

页数：4