A novel heteroacene, 2-(2,3,4,5-tetrafluorophenyl)-1H-imidazo[4,5-b]phenazine as a multi-response sensor for F− detection
A novel heteroacene, 2-(2,3,4,5-tetrafluorophenyl)-1H-imidazo[4,5-b]phenazine has been successfully synthesized. The heteroacene can selectively detect F− over Cl−, Br−, I−, NO3−, HSO4−, ClO4−, and BF4− in organic solvents through colorimetric and fluorescent responses. The interaction between the h...
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| Main Authors: | , , |
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| Other Authors: | |
| Format: | Article |
| Language: | English |
| Published: |
2013
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| Online Access: | https://hdl.handle.net/10356/106261 http://hdl.handle.net/10220/17868 |
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| Institution: | Nanyang Technological University |
| Language: | English |
| Summary: | A novel heteroacene, 2-(2,3,4,5-tetrafluorophenyl)-1H-imidazo[4,5-b]phenazine has been successfully synthesized. The heteroacene can selectively detect F− over Cl−, Br−, I−, NO3−, HSO4−, ClO4−, and BF4− in organic solvents through colorimetric and fluorescent responses. The interaction between the heteroacene and F− was investigated through UV–Vis, fluorescence, and 1H NMR titration experiments, which suggested that the effects might occur via a combined process including hydrogen bond, deprotonation, and anion–π interactions between the sensor and F−. |
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