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A new fluorescent chemosensor for F- based on inhibition of excited-state intramolecular proton transfer
- Issue Date
- 4-3월-2009
- Publisher
- PERGAMON-ELSEVIER SCIENCE LTD
- Keywords
- Chemosensor; Anions; Anthraquinone; Calixarenes; ESIPT
- Citation
- TETRAHEDRON LETTERS, v.50, no.9, pp.983 - 987
- Indexed
- SCIE
SCOPUS
- Journal Title
- TETRAHEDRON LETTERS
- Volume
- 50
- Number
- 9
- Start Page
- 983
- End Page
- 987
- ISSN
- 0040-4039
- Abstract
- New fluorescent chemosensor 1 with two amidoanthraquinone groups (1-AAQs) at the lower rim of p-tert-butylcalix[4]arene has been synthesized. The significant changes of absorption and fluorescence bands show that chemosensor 1 is selective toward fluoride ion (F) over other anions such as Cl, Br, I, CH3COO, H2PO4, HSO4, and OH. The ESIPT process of 1 is inhibited by the fluoride-induced H-bonding followed by deprotonation of NH of the 1-AAQ. (C) 2008 Elsevier Ltd. All rights reserved.
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Collections - College of Science > Department of Chemistry > 1. Journal Articles
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