Ratiometric, colorimetric and fluorescent chemosensor for “turn-on” detection of cyanide (CN−)

Abstract

Herein, we unveiled the first zinc complex based chemosensor for cyanide (CN⁻). The changed visual color from light reddish orange to dark reddish orange, the enhanced fluorescence intensity at approximately 600 nm and the near-linear correlation A₄₉₅/A₃₂₅versus the cyanide concentration were observed after adding CN⁻.