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Novel indole based colorimetric and “turn on” fluorescent sensors for biologically important fluoride anion sensing

Paper ID Volume ID Publish Year Pages File Format Full-Text
29745 44434 2011 5 PDF Available
Title
Novel indole based colorimetric and “turn on” fluorescent sensors for biologically important fluoride anion sensing
Abstract

A novel indole Hydrazone receptor 1 has been synthesized by one step of condensation, which can act as an efficient colorimetric and “turn on” fluorescent sensor for fluoride anions; Benesi–Hildebrand equation indicates that 1 associates with F− in a 1:1 stoichiometry; [TBA]OH and 1H NMR titration experiments indicate that the deprotonation process involved upon addition of fluoride anions.

► New indole based receptor 1 for biologically important fluoride anion recognition has been developed. ► The receptor 1 shows colorimetric and “turn on” fluorescence toward fluoride anion. ► The mechanism for the sensing process were investigated by the UV–vis, fluorescence emission and 1H NMR titrations.

Keywords
Indole; Fluorescent sensor; Fluoride anions
First Page Preview
Novel indole based colorimetric and “turn on” fluorescent sensors for biologically important fluoride anion sensing
Publisher
Database: Elsevier - ScienceDirect
Journal: Journal of Photochemistry and Photobiology B: Biology - Volume 103, Issue 2, 3 May 2011, Pages 140–144
Authors
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Subjects
Physical Sciences and Engineering Chemical Engineering Bioengineering