An acetate sensor based on azo in aqueous media.
A colorimetric sensor 1,N,N'-di-(2-hydroxy-5-(phenldiazenyl)benzaldehyde)-1,3-diiminothiourea for acetate in DMSO and 9/1 DMSO/H(2)O (v/v) mixtures was designed and synthesized. The binding ability evaluated by UV-vis experiment reveals that sensor 1 can selectively recognize acetate. In addition, the color changes induced by anions can provide a way of detection by 'naked-eye'. The further insights to the nature of interactions between the sensor 1 and AcO(-) were investigated by (1)H NMR titration experiments in 9/1 DMSO-d(6)/H(2)O (v/v).
Huang
Weiwei
W
Department of Chemistry, Nankai University, Tianjin 300071, PR China.
Su
Hongyan
H
Li
Jianwei
J
Lin
Hai
H
Lin
Huakuan
H
D000085:Acetates / Q000032:analysis*; D001391:Azo Compounds / Q000737:chemistry*; D002623:Chemistry Techniques, Analytical / Q000295:instrumentation*; D003116:Color; D007700:Kinetics; D009682:Magnetic Resonance Spectroscopy; D012996:Solutions; D013056:Spectrophotometry, Ultraviolet; D014867:Water / Q000737:chemistry*
D000085:Acetates; D001391:Azo Compounds; D012996:Solutions; D014867:Water