Abstract
An ion-pair receptor, 1, containing both cation- and anion-recognizing sites, has been synthesized and characterized. Single-crystal X-ray diffraction structural studies and 1H NMR spectroscopic analyses confirmed that 1 forms stable 1:1 complexes with CsF in solution and in the solid state in spite of the large separation enforced between the receptor-bound anion and cation. In 9:1 CDCl3/CD3OD, binding of fluoride anion within the calix[4]pyrrole core of 1 was not observed in the absence of a cobound cesium cation; however, it was seen in this solvent mixture under conditions where a Cs+ cation was bound to the crown ether-strapped calix[4]arene subunit.
Original language | English |
---|---|
Pages (from-to) | 13162-13166 |
Number of pages | 5 |
Journal | Journal of the American Chemical Society |
Volume | 130 |
Issue number | 39 |
DOIs | |
Publication status | Published - 2008 Oct 1 |
ASJC Scopus subject areas
- Catalysis
- Chemistry(all)
- Biochemistry
- Colloid and Surface Chemistry