Abstract
The present work describes design and synthesis of a tetra substituted imidazole derived molecular organic scaffold. The molecular probe showed good photophysical behavior due to excited state intramolecular proton transfer (ESIPT) mechanism. Upon interaction with different class of anions in HEPES buffer probe has shown high selectivity and sensitivity (15.34ppb) to detect cyanide anion (CN−) through a reaction based chemodosimeter approach. The chemodosimeter has shown naked-eye sensitivity and enhanced emission, “turn-on” due to the formation of cyclic oxazole derivative in the medium. The mechanism of interaction between potential chemodosimeter and CN− has been confirmed by the change in optical behaviors, 1H NMR, 13C NMR, HRMS, and X-ray crystallography data. Also the chemodosimeter has been utilized to detect cyanide in surfactant medium, on test paper strips and silica coated microslides.
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