| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 1309113 | Inorganica Chimica Acta | 2015 | 5 Pages |
•New fluorescent chemosensor based on pyrazine was designed and synthesized.•High selectivity and sensitivity of 1 for Al3+ was observed.•Addition of Al3+ into 1 gave remarkably enhanced fluorescence intensity at 488 nm.
In this article, a novel pyrazine-derived hydrazone Schiff-base ligand bearing the quinoline unit (1) has been designed, synthesized and evaluated as a “turn on” fluorescent chemosensor for Al3+ based on the photoinduced electron-transfer (PET) mechanism and the chelation-enhanced fluorescence (CHEF) phenomenon. The sensor 1 showed remarkably enhanced fluorescence intensity at 488 nm in the presence of Al3+ ion and it also showed high selectivity and sensitivity towards Al3+ ion over a wide range of metal ions in ethanol, for the detection limit of 1 for Al3+ could reach at 10−7 mol/L.
Graphical abstractA novel pyrazine-derived hydrazone Schiff-base ligand bearing the quinoline unit (1) has been designed, synthesized and evaluated as a “turn on” fluorescent chemosensor for Al3+. This sensor 1 showed high selectivity towards Al3+ ion over a wide range of metal ions with large fluorescence enhancement at 488 nm.Figure optionsDownload full-size imageDownload as PowerPoint slide
