Dual-signaling fluorescent chemosensor based on bisthiazole derivatives

被引：61

作者：

Helal, Aasif ^{[1
]}

Lee, Sang Hoon ^{[1
]}

Kim, Sung Hong ^{[2
]}

Kim, Hong-Seok ^{[1
]}

机构：

[1] Kyungpook Natl Univ, Dept Appl Chem, Taegu 702701, South Korea

[2] Korea Basic Sci Inst, Daegu Ctr, Anal Res Div, Taegu 702701, South Korea

来源：

TETRAHEDRON LETTERS | 2010年 / 51卷 / 27期

关键词：

Bisthiazole; Fluorescence; ESIPT; Ratiometric sensing; Quenching; INTRAMOLECULAR PROTON-TRANSFER; EXCITED-STATE; SENSING PROPERTIES; CROWN-ETHERS; ZINC; SENSOR; THIAZOLE; COPPER; COMPLEXES; BINDING;

D O I：

10.1016/j.tetlet.2010.04.126

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

A new bisthiazole chemosensor (3) with phenolic substituents at the position 2 of the thiazole rings was prepared. The chemosensor 3 acts as a potential dual-function fluorescence chemosensor with Cu2+ and Zn2+ ions causing complete quenching and ratiometric change of fluorescence, respectively. The mechanism of fluorescence was based on the cation-induced inhibition of excited-state intramolecular proton transfer (ESIPT). (C) 2010 Elsevier Ltd. All rights reserved.

引用

页码：3531 / 3535

页数：5

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