Colorimetric and fluorescence sensing of anions using thiourea based coumarin receptors

被引：105

作者：

Ghosh, Kumaresh ^{[1
]}

Adhikari, Surnan ^{[1
]}

机构：

[1] Univ Kalyani, Dept Chem, Kalyani 741235, Nadia, India

来源：

TETRAHEDRON LETTERS | 2006年 / 47卷 / 46期

关键词：

anion binding; colorimetric; selective binding; fluorescence quenching; fluoride binding; benzoate binding;

D O I：

10.1016/j.tetlet.2006.09.035

中图分类号：

O62 [有机化学];

学科分类号：

070303 ; 081704 ;

摘要：

Thiourea-containing coumarins 1, 2 have been designed and synthesized via reaction of 6-aminomethylcoumarin and the corresponding isothiocyanates. Their anion-binding ability has been examined using UV-vis, fluorescence and H-1 NMR. The anion recognition takes place through charge neutral thiourea receptor sites with concomitant fluorescence quenching of the coumarin moiety with 1 showing a strong binding to C6H5COO- over F- with a distinct change in color. (c) 2006 Elsevier Ltd. All rights reserved.

引用

页码：8165 / 8169

页数：5

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