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. 2012 Jan;22(1):155-62.
doi: 10.1007/s10895-011-0942-z. Epub 2011 Aug 13.

Pyrrole based Schiff bases as colorimetric and fluorescent chemosensors for fluoride and hydroxide anions

Sivan Velmathi  1 , Vijayaraghavan Reena, Sivalingam Suganya, Sambandam Anandan
Affiliations

Pyrrole based Schiff bases as colorimetric and fluorescent chemosensors for fluoride and hydroxide anions

Sivan Velmathi et al. J Fluoresc. 2012 Jan.

Abstract

An efficient colorimetric sensor with pyrrole-NH moiety as binding site and nitro group as a signaling unit has been synthesized by a one step procedure and characterized by spectroscopic techniques, which displays excellent selectivity and sensitivity for fluoride and hydroxide ions. The hydrogen bonding with these anions provides remarkable colorimetric responses. (1)H NMR and FT IR studies has been carried out to confirm the hydrogen bonding. UV-vis and fluorescence spectral changes can be exploited for real time and on site application.

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