Amphiphilic push-pull iminocoumarin for colorimetric selective fluoride anion sensing

A newer amphiphilic push-pull iminocoumarin 1 has been designed and synthesized. The iminocoumarin 1 shows unique binding affinity towards fluoride anion (Ka ∼106 M-1) over other anions (Cl-, Br-, I-, H2PO4-, AcO-, and HSO4-) in CH2Cl2. The colorimetric measurements shows iminocoumarin 1 has selecti...

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Bibliographic Details
Main Authors: Bhosale, Rajesh S., Kelson, Melissa M.A., Bhosale, Sidhanath V., Bhargava, Suresh K., Bhosale, Sheshanath V.
Format: Conference Proceeding
Language:English
Subjects:
Amphiphile
Colorimetric
Fluorescence quenching
Fluoride sensor
Knoevenagel condensation
UV-vis spectroscopy
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Summary:A newer amphiphilic push-pull iminocoumarin 1 has been designed and synthesized. The iminocoumarin 1 shows unique binding affinity towards fluoride anion (Ka ∼106 M-1) over other anions (Cl-, Br-, I-, H2PO4-, AcO-, and HSO4-) in CH2Cl2. The colorimetric measurements shows iminocoumarin 1 has selective colorimetric response to fluoride anion. The experimental data obtained from UV-vis and fluorescence spectroscopic titrations are consistent with the colorimetric measurements.
ISSN:2214-7853
2214-7853
DOI:10.1016/j.matpr.2016.04.088