| Article ID | Journal | Published Year | Pages | File Type |
|---|---|---|---|---|
| 5274607 | Tetrahedron Letters | 2008 | 5 Pages |
Two ortho-phenylenediamine-based new receptors 1 and 2 with an anthracene-coupled benzimidazolium motif have been designed and synthesized. The directed hydrogen bonds (both conventional and unconventional) and charge-charge interactions allowed the open clefts of both 1 and 2 to bind carboxylate, fluoride and dihydrogenphosphate anions with moderate binding constant values. The selectivity and sensitivity were ascertained by 1H NMR, UV-vis and fluorescence spectroscopic methods. The binding cleft of 2 is found to be more effective than that of 1.
Graphical abstractTwo ortho-phenylenediamine-based new receptors 1 and 2 with an anthracene-coupled benzimidazolium motif have been designed and synthesized. The directed hydrogen bonds and charge-charge interactions allowed the open clefts of both 1 and 2 to bind carboxylate, fluoride and dihydrogenphosphate anions with moderate binding constant values. The binding cleft of 2 is found to be more effective than that of 1.Download full-size image
