SIMPLE BENZOTHIAZOLE CHEMOSENSOR FOR DETECTION OF CYANIDE ANIONS VIA NUCLEOPHILIC ADDITION

Аннотация

A benzothiazolium salt containing carbazole group has been synthesized in a good yield via simple condensation reaction. Its photophysical properties and affinity for cyanide anion (tetrabutylammonium cyanide) have been investigated. The compound exhibited quick and well visible UV/Vis absorption and fluorescence responses to cyanide anion in MeCN, as the yellow color faded and the orange fluorescence disappeared. The in situ analysis by ¹H NMR indicated that the cyanide anion was added to the C=N bond in the benzothiazolyl group.