Journal
TETRAHEDRON LETTERS
Volume 53, Issue 6, Pages 661-665Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.tetlet.2011.11.121
Keywords
Dibenzo[a,c]phenazine; Fluorescent sensors; Anion detection; Chemical sensors; Spectroscopic titrations; NMR titrations
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Funding
- University Research Board (URB) of American University of Beirut, American University of Sharjah [FRG10-02]
- Petroleum Research Foundation of American Chemical Society [47343-B10]
- Solvay S.A
- Science and Technology Center of National Science Foundation [DMR-0120967]
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Binding studies of two sulfonamide-functionalized dibenzophenazine-based sensors are reported. Spectroscopic studies showed that both sensors are effective fluorescent turn-on sensors for several anions. Both sensors showed responses to acetate, benzoate, cyanide, and fluoride ions. NMR titrations confirmed the mode of binding of the sensors to be through H-bonding to the sulfonamide groups. (C) 2011 Elsevier Ltd. All rights reserved.
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