A novel fluorescent and chromogenic probe for cyanide detection in water based on the nucleophilic addition of cyanide to imine group.
A fluorescent and colorimetric probe bearing salicylaldehyde hydrazone functionality has been prepared for cyanide sensing. The detection of cyanide was performed via the nucleophilic attack of cyanide anion on the imine group of the probe with a 1:1 binding stoichiometry, which could be confirmed by (1)H NMR and MS studies. The specific reaction results in a prominent fluorescence enhancement and a color change from colorless to yellow.
Sun
Yue
Y
School of Chemistry and Chemical Engineering, Shanxi University, Taiyuan, China.
Liu
Yunlong
Y
Chen
Maliang
M
Guo
Wei
W
D000447:Aldehydes / Q000737:chemistry; D000838:Anions / Q000032:analysis / Q000737:chemistry; D002863:Chromogenic Compounds / Q000737:chemistry; D003486:Cyanides / Q000032:analysis* / Q000737:chemistry; D005453:Fluorescence; D005456:Fluorescent Dyes / Q000737:chemistry; D006835:Hydrazones / Q000737:chemistry; D007097:Imines / Q000737:chemistry*; D009682:Magnetic Resonance Spectroscopy; D015335:Molecular Probes / Q000737:chemistry*; D015394:Molecular Structure; D013050:Spectrometry, Fluorescence; D021241:Spectrometry, Mass, Electrospray Ionization; D014874:Water Pollutants, Chemical / Q000032:analysis* / Q000737:chemistry
D000447:Aldehydes; D000838:Anions; D002863:Chromogenic Compounds; D003486:Cyanides; D005456:Fluorescent Dyes; D006835:Hydrazones; D007097:Imines; D015335:Molecular Probes; D014874:Water Pollutants, Chemical; C013243:salicylaldehyde