A novel colorimetric and fluorogenic chemosensor for selective detection of Cu²⁺ ions in mixed aqueous media

Abstract

A novel and easy-to-synthesize chemosensor (L) was developed for the selective sensing of Cu2+ ions in mixed aqueous medium.

Pyrene‐based Schiff Base as Selective Chemosensor for Copper(II) and Sulfide Ions

“…The 1 H‐NMR spectra of 1 showed considerable variation in presence of Cu 2+ in DMSO‐d 6 solvent (Figure ). The downfield value of H a (of –OH) in 1 was due to the intra‐molecular hydrogen bond between the imine‐N atoms of 1 with H a forming a six‐membered transition state . On addition of Cu 2+ ions, the intramolecular hydrogen bonding got disturbed.…”

Optical Sensing of Copper and Its Removal by Different Environmental Technologies

“…The sensor exhibit near‐infrared (NIR) fluorescence for Cu 2+ ion. Yadav et al . also synthesized one fluoro chemosensor for Cu 2+ ions in mixed organic‐water media.…”

A coumarin-containing Schiff base fluorescent probe with AIE effect for the copper(ii) ion

“…47 The downeld value of H a (of -OH) at d ¼ 14.86 ppm in CTPE was due to the intramolecular hydrogen bond between the imine-N atom of CTPE with H a forming a six-membered transition state. 48 On addition of Cu 2+ ion, the intramolecular hydrogen bonding was disturbed. 49 As Cu 2+ gradually increased, the proton signal of H a almost disappeared.…”