Ratiometric dual fluorescent receptors for anions under intramolecular charge transfer mechanism

被引：104

作者：

Wen, ZC

Jiang, YB ^{[1
]}

机构：

[1] Xiamen Univ, Dept Chem, Xiamen 361005, Peoples R China

[2] Xiamen Univ, MOE Key Lab Analyt Sci, Xiamen 361005, Peoples R China

来源：

TETRAHEDRON | 2004年 / 60卷 / 49期

基金：

中国国家自然科学基金;

关键词：

receptor; anion sensing; thiourea; intramolecular charge transfer; dual fluorescence; ratiometric;

D O I：

10.1016/j.tet.2004.08.045

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

A series of the intramolecular charge transfer (ICT) dual fluorescent receptors with anion binding site in the electron acceptor were designed and synthesized. These receptors exhibited dual fluorescence in acetonitrile and the charge transfer (CT) emission energy was found to correlate linearly with the Hammett constant of the substituent existing in the electron acceptor, which is the basis for anion sensing. Dual fluorescence of these receptors was found to be sensitive to the presence of anions such as fluoride and acetate and the receptors can be employed as ratiometric fluorescent sensors for anions. (C) 2004 Elsevier Ltd. All rights reserved.

引用

页码：11109 / 11115

页数：7

共 52 条

[1] Transition-metal receptor systems for the selective recognition and sensing of anionic guest species [J].