Selective fluoride anion sensing by simple benzimidazolyl based ligand

- Fluoride can be recognized by 1,3-bis(5,6-dimethyl-1H-benzo[d]imidazol-2-yl)benzene receptor.
- 1H NMR, UV-visible and florescence spectroscopy can be used to follow this recognition.
- Binding mode of fluoride is compared with other anions.
- Binding is dependent on the smaller size of fluoride due to methyl group hindrance.