Abstract
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-. © 2013 Elsevier Ltd. All rights reserved.
Original language | English |
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Pages (from-to) | 2633-2636 |
Journal | Tetrahedron Letters |
Volume | 54 |
Issue number | 21 |
Online published | 16 Mar 2013 |
DOIs | |
Publication status | Published - 22 May 2013 |
Externally published | Yes |
Research Keywords
- Anion sensor
- Combined process
- Heteroacene
- Multi-response
- Selective
- Synthesis