Abstract
Two anion receptors 1 and 2 with a nitrophenyl group as a signaling group and urea/thiourea as a binding group were synthesized and their anion binding abilities were examined. The receptor 1 formed the hydrogen-bonded complex with various anions except fluoride. However, the receptor 2 immediately formed deprotonated receptor with various anions. Therefore, they operated based on a hydrogen bonding and an acid-base equilibrium. In addition, the receptor 1 proved to be an efficient and selective naked-eye detector for the fluoride ion.
Original language | English |
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Pages (from-to) | 29-35 |
Number of pages | 7 |
Journal | Journal of Inclusion Phenomena and Macrocyclic Chemistry |
Volume | 70 |
Issue number | 1-2 |
DOIs | |
State | Published - Jun 2011 |
Keywords
- Anion receptor
- Anion recognition
- Colorimetric receptor
- Urea/thiourea