Two novel heterocyclic thiosemicarbazone derivatives have been synthesized, and characterized, by means of spectroscopic and single crystal X-ray diffraction methods. Their chromophoric-fluorogenic response towards anions in competing solvent dimethyl sulfoxide (DMSO) was studied. The receptor shows selective recognition towards fluoride anion. The binding affinity of the receptors with fluoride anion was calculated using UV-visible and fluorescence spectroscopic techniques.
Keywords: Chromophoric and fluorogenic sensor; Deprotonation; Heterocyclic; Single crystal XRD; Thiosemicarbazone; UV–visible spectroscopy.
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