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Pyrrole Based Schiff Bases as Colorimetric and Fluorescent Chemosensors for Fluoride and Hydroxide Anions |
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| Authors: | Sivan Velmathi Vijayaraghavan Reena Sivalingam Suganya Sambandam Anandan |
| Institution: | (1) Organic and Polymer Synthesis Laboratory, Department of Chemistry, National Institute of Technology, Tiruchirappalli, Tamil Nadu, 620 015, India;(2) Nanomaterials & Solar Energy Conversion Laboratory, Department of Chemistry, National Institute of Technology, Tiruchirappalli, Tamil Nadu, 620 015, India |
| 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. 1H 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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