Table 3.
Transport experiments with cavitands 1 and 3 and fluorophore conjugates in a liquid-membrane U-tube apparatus.
| Hosta | Guest | Source phase | Receiving phase | Transport no |
|---|---|---|---|---|
| 1 | 9 | NaOH (0.1 m) | MQ water | no |
| 1 | 9 | NaOH (0.1 m) | HCl (0.1 m) | no |
| 1 | 9 | NaOH (0.1 m) | NaCl (0.1 mm) | no |
| 1 | 9 | NaOH (0.1 m) | THF (0.1 mm in MQ water) | no |
| 1 | 9 | NaOH (0.1 m) | n-propyltrimethyl-ammonium chloride (0.1 mm in MQ water) | no |
| 1 | 9 | pH 13.26 HEPES | pH 5.94 HEPES | no |
| 1 | 11 | pH 13.26 HEPES | pH 5.94 HEPES | no |
| 1 | 9 (500 μm) | MQ water | MQ water | no |
| 1 | 9 (500 μm) | NaOH (0.1 m) | NaOH (0.1 m) | no |
| 1 | 9 (500 μm) | NaOH (0.1 m) | HCl (0.1 m) | no |
| 3 | 9 | MQ water | MQ water | no |
| 3 | 11 | MQ water | MQ water | no |
a
Resorcinarene-based receptors (100 μm) in CH2Cl2; guest concentration was 100 μm unless otherwise noted. After stirring for 24 h, aliquots were removed and analyzed for guest concentration by UV/Vis spectroscopy.