Title

Highly Selective Fluorescence Turn-On Sensor for Fluoride Detection

Authors

Authors

B. L. Sui; B. Kim; Y. W. Zhang; A. Frazer;K. D. Belfield

Comments

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Abbreviated Journal Title

ACS Appl. Mater. Interfaces

Keywords

fluoride; fluorescence sensor; fluorene; triazolium; fluoride detection; anion sensor; ANION RECOGNITION; HYDROGEN-BONDS; AQUEOUS-MEDIA; PROTON-TRANSFER; RECEPTORS; BINDING; CHEMOSENSOR; IONS; OSTEOPOROSIS; DERIVATIVES; Nanoscience & Nanotechnology; Materials Science, Multidisciplinary

Abstract

Through click chemistry, triazole and triazolium groups have been explored to recognize anions through C-H center dot center dot center dot A(-) hydrogen-bonding complexion. Herein, we demonstrate evidence of fluoride-induced deprotonation of a C-H bond and its application in fluoride detection. The combination of fluorene and triazolium units produced a highly selective fluorescence turn-on prototype sensor for fluoride. The interactions between the C H bond and F- were studied by fluorescence spectroscopy and H-1 NMR titrations. Test papers were prepared to detect fluoride in aqueous media at concentrations down to 1.9 ppm, important for estimating whether the fluoride concentration in drinking water is at a safe level.

Journal Title

Acs Applied Materials & Interfaces

Volume

5

Issue/Number

8

Publication Date

1-1-2013

Document Type

Article

Language

English

First Page

2920

Last Page

2923

WOS Identifier

WOS:000318205000015

ISSN

1944-8244

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