کد مقاله | کد نشریه | سال انتشار | مقاله انگلیسی | نسخه تمام متن |
---|---|---|---|---|
1231988 | 1495278 | 2012 | 5 صفحه PDF | دانلود رایگان |
A copper (II) complex of azo-dye (Cu-1) has been synthesized by the reaction of 1-(2-pyridylazo)-2-naphthol (1) with copper (II) chloride. The complex Cu-1 is able to selectively sense hydrogen sulfide over other anions followed by the release of compound 1 to give a remarkable change of UV–vis absorption at neutral pH in aqueous solution.
A copper (II) complex of azo-dye (Cu-1) has been synthesized by the reaction of 1-(2-pyridylazo)-2-naphthol (1) with copper (II) chloride. The complex Cu-1 is able to selectively sense hydrogen sulfide over other anions followed by the release of compound 1 to give a remarkable change of UV–vis absorption at neutral pH in aqueous solution.Figure optionsDownload as PowerPoint slideHighlights
► Cu-1 can be utilized as a colorimetric chemosensor for detection of H2S at neutral pH in aqueous solution.
► The blue-shifted absorption band could be attributed to the released 1 from the complex Cu-1 by adding Na2S to capture the Cu2+.
► Cu-1 showed excellent selectivity toward H2S over the other competitive anions.
Journal: Spectrochimica Acta Part A: Molecular and Biomolecular Spectroscopy - Volume 90, May 2012, Pages 35–39