Issue 1, 2015

A simple and effective 1,2,3-triazole based “turn-on” fluorescence sensor for the detection of anions

Abstract

A novel and effective 1,2,3-triazole based fluorescence chemosensor has been synthesized for the specific detection of anions in homogeneous medium. Notably, the molecule, synthesized in one step using “Click chemistry”, is a simple 1,4-diaryl-1,2,3-triazole, containing a phenol moiety. The probe displayed the strongest response to fluoride ion through the “turn-on” fluorescence sensing mechanism when screened for selectivity and sensitivity against a series of anions (F, Cl, Br, I, H2PO4, ClO4, OAc, BF4). Fluorescence spectroscopy and Nuclear Magnetic Resonance Spectroscopy (NMR) studies substantiate 1 : 1 stoichiometry between the probe and fluoride anion. Kinetic studies and the single crystal X-ray spectroscopic evidence revealed the binding interaction occurs with the phenolic group and the anion.

Graphical abstract: A simple and effective 1,2,3-triazole based “turn-on” fluorescence sensor for the detection of anions

Supplementary files

Article information

Article type
Paper
Submitted
21 Aug 2014
Accepted
16 Oct 2014
First published
16 Oct 2014

New J. Chem., 2015,39, 295-303

A simple and effective 1,2,3-triazole based “turn-on” fluorescence sensor for the detection of anions

D. Ghosh, S. Rhodes, K. Hawkins, D. Winder, A. Atkinson, W. Ming, C. Padgett, J. Orvis, K. Aiken and S. Landge, New J. Chem., 2015, 39, 295 DOI: 10.1039/C4NJ01411A

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