A Simple and Effective 1,2,3-Triazole Based “Turn-On” Fluorescence Sensor for the Detection of Anions
New Journal of Chemistry
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.
Ghosh, Debanjana, Shannon Rhodes, Karena Hawkins, Domonique Winder, Austin Atkinson, Marshall Ming, Clifford Padgett, Jeffery A. Orvis, Karelle Aiken, Shainaz M. Landge.
"A Simple and Effective 1,2,3-Triazole Based “Turn-On” Fluorescence Sensor for the Detection of Anions."
New Journal of Chemistry, 39 (1): 295-303.
doi: 10.1039/C4NJ01411A source: https://pubs.rsc.org/en/content/articlelanding/2015/NJ/C4NJ01411A#!divAbstract