Adenine-based urea receptors in fluorescent recognition of iodide

被引：31
作者：
Ghosh, Kumaresh [1 ]
Sen, Tanushree [1 ]
机构：
[1] Kalyani Univ, Dept Chem, Kalyani 741235, W Bengal, India
来源：
TETRAHEDRON LETTERS | 2008年 / 49卷 / 50期
关键词：
Adenine-based urea; Naphthalene; Sensors; Carboxylate anions; Iodide recognition;
D O I：
10.1016/j.tetlet.2008.10.009
中图分类号：
O62 [有机化学];
学科分类号：
070303 ; 081704 ;
摘要：
Adenine-based receptors 1 and 2 are designed and synthesized for selective sensing of iodide over the other halides and carboxylate anions. Both the receptors 1 and 2 use the urea motif for binding carboxylates and halides. Emissions of the naphthalene and the anthracene in 1 and 2, respectively, are monitored in CHCl3 in detecting the anions. While carboxylates, fluoride, chloride, and bromide increase the emissions of naphthalene and anthracene in both the receptors 1 and 2 during complexation, iodide quenches the emission. Such selective quenching allows iodide to be discriminated from other halides and carboxylate anions. (C) 2008 Elsevier Ltd. All rights reserved.
引用
收藏
页码：7204 / 7208
页数：5
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