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
收藏
页码：3531 / 3535
页数：5
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