Electron-deficient tripodal amide based receptor: An exclusive turn-on fluorescent and colorimetric chemo sensor for cyanide ion

Synopsis: Here in, we have designed, synthesized and isolated a sensor L, as an exclusive selective turn-on chemo sensor for cyanide ion. The acetonitrile solution contains L with Tetrabutyl ammonium cyanide, results sudden color change from colorless to yellowish-brown. Chemosensor L produced a strong fluorescence response with an enhancement of very high fluorescence intensity while addition of CN− ion and the strength of the chemosensor L towards cyanide binding is found to be 3.9813 × 104 M−1 In order to use this sensor in practical application, we also prepared a cassette which is fabricated with sensor L and we were succeeded to sense cyanide ion.111