Table 7.
Binding constants of different guests with the ditopic receptor 128.
| H3N+(CH2)nNH3+×2 Cl− | Kass [M−1]a |
| n = 8 | 212 |
| n = 10 | 163 |
| n = 12 | 2400 |
| n = 16 | 2600 |
aNMR titration in CDCl3/DMSO 3/2; 1:1 complexes; errors < 15%.
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