Electron Deficient π-hole Assisted Colorimetric Probe for Selective Cyanide Recognition.

Abstract

Here in, simple and novel electron deficient pi-Hole assisted amide based colorimetric receptor synthesized for cyanide recognition which produce yellow to brownish red color change upon the addition of cyanide in acetonitrile medium. Cyanide has selectively recognized successfully with 1:1 stoichiometric ratio and 1.5523x104 M-1 association constant. Cyanide recognition study was carried out with UV-Vis absorption and FTIR-Analysis and association constant and stoichiometric ratio were calculated by Benasi-Hildebrand plot and job’s continues variation method respectively