A selective, sensitive probe for mercury(II) ions based on oxazine-thione |
| |
| Authors: | Qian-Qian ZhangJian-Feng Ge Qing-Feng XuXue-Bo Yang Xue-Qin CaoNa-Jun Li Jian-Mei Lu |
| |
| Affiliation: | Key Laboratory of Organic Synthesis of Jiangsu Province, College of Chemistry, Chemical Engineering and Materials Science, Soochow University, Suzhou 215123, China |
| |
| Abstract: | A selective, sensitive probe for Hg(II) ions, 7-(diethylamino)-3-methyl-2H-benzo[b][1,4] oxazine-2-thione (1), is developed. Compound 1 behaves as a ratiometric probe, exhibiting a large blue shift of 100 nm in its absorption spectra upon exposure to Hg(II) ions. The dramatic color change of the solution made ‘naked-eye’ detection of Hg(II) ions possible. Emission spectra of 1 displayed a selective enhancement in intensity in the presence of Hg(II) ions. ESI+-MS analysis indicated that Hg2+-induced desulfurization caused the large absorption response. |
| |
| Keywords: | Mercury(II) ion probe Oxazine thione Naked-eye detection Chemosensor |
| 本文献已被 ScienceDirect 等数据库收录！ |
|
