论文成果
A selective "turn-on" fluorescent sensor for Hg2+ based on "reactive" 7-hydroxycoumarin compound
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- 论文类型：期刊论文
- 发表时间：2012-02-20
- 发表刊物：SENSORS AND ACTUATORS B-CHEMICAL
- 收录刊物：SCIE、EI
- 文献类型：J
- 卷号：162
- 期号：1
- 页面范围：391-395
- ISSN号：0925-4005
- 关键字：Fluorescence probe; 7-Hydroxycoumarin; Hg2+ selectivity; Off-on; Aqueous
media
- 摘要：A simple 7-hydroxycoumarin-basecl compound L1 was rationally designed and synthesized behaving as a highly selective fluorescent sensor for Hg2+ in aqueous media. It shows selective and "turn-on" fluorescence upon addition of Hg2+. Fluorescence titration and H-1 NMR investigation reveal that the fluorescence enhancement of L1 upon Hg2+ addition is promoted by Hg2+-induced cyclization of L1 to a more rigid dihydrobenzofuran derivative. (C) 2011 Elsevier B.V. All rights reserved.
