Pyrene Based Chemosensor for Selective Sensing of Fluoride in Aprotic and Protic Environment.

J Fluoresc

Department of Environmental Science, University of Kalyani, Nadia, Kalyani, 741 235, West Bengal, India.

Published: September 2015

AI Article Synopsis

  • A new hydrazone compound was created from pyrene-1-aldehyde and analyzed using (1)H NMR and mass spectrometry.
  • The compound demonstrated effective detection of fluoride ions through both absorption and fluorescence methods in the solvent DMSO, outperforming other ions like Cl(-) and Br(-).
  • An iron(III) complex of the hydrazone was also tested as a solution-based fluorescent sensor, which deactivates when fluoride is present, using a displacement mechanism.

Article Abstract

A new aromatic hydrazone based on pyrene-1-aldehyde was synthesized and characterized by (1)H NMR and mass spectrometric analyses. The sensing properties of the hydrazone were studied by absorption and fluorescence studies in the aprotic solvent DMSO. It was capable of visual and fluorescent detection of fluoride over competitive ions (Cl(-), Br(-), H2PO4 (-), AcO(-)). Moreover, the in-situ prepared iron(III) complex of the hydrazone was investigated as a turn off fluorescent fluoride sensor in aqueous medium by displacement mechanism.

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Source
http://dx.doi.org/10.1007/s10895-015-1636-8DOI Listing

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