期刊
TETRAHEDRON LETTERS
卷 54, 期 22, 页码 2755-2758出版社
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2013.02.112
关键词
Ratiometric sensor; Fluoride sensing; Boronic acid; Imidazolium; Fluorescent probe
资金
- Converging Research Center Program through the Ministry of Education, Science and Technology [2012K001512]
- Ewha Global Top 5 Grant of the Ewha Womans University
- Dalian Institute of Chemical Physics, Chinese Academy of Sciences
A new ratiometric fluorescent probe for fluoride ions was developed which complexed fluoride by a tridentate receptor of boronic acid and imidazolium. In the current study, a tridentate receptor 1 with one ortho boronic acid and two imidazolium groups was designed. The boron center can co-operate with imidazolium to bind F-. The formation of B-F complex stabilizes the interaction between fluoride and imidazolium which induces a ratiometric fluorescence response. With the addition of F-, a strongly increased fluorescent emission centered at 370 nm appears at the expense of the fluorescent emission centered at 445 nm. (C) 2013 Elsevier Ltd. All rights reserved.
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