Table 7.
Formation constants (Kf, M−1), inclusion enthalpy (ΔH, kJ/mol) and entropy (−TΔS, kJ/mol). obtained for the complexes formed between volatiles and native α-CD or β-CD determined by calorimetry.
| Guest | α-CD | β-CD | ||||
|---|---|---|---|---|---|---|
| Kf | ΔH | −TΔS | Kf | ΔH | −TΔS | |
| Benzene | - | - | - | 107 a | −3.5 | −8.1 |
| (−)-Borneol | - | - | - | 19,750 b | −23.2 | −1.3 |
| (+)-Borneol | - | - | - | 18,640 b | −20.9 | −3.5 |
| 4-Bromophenol | 708 c | −25.6 | 9.2 | 851 c | −12.2 | −4.5 |
| 1-Butanol | 83 d | −10.7 | −0.2 | - | - | - |
| 100 e | −9.9 | −1.5 | - | - | - | |
| 80 f | −10.9 | 0.1 | - | - | - | |
| 9153 g | −7.9 | −14.7 | 1430 g | 3.0 | −21.0 | |
| 4-Chlorophenol | 295 c | −20.1 | 6 | 407 c | −11.9 | −3.0 |
| Cyclobutanol | 63 e | −5.5 | −4.8 | - | - | - |
| 30 i | −11.5 | 3 | 14 i | 3.7 | −10.2 | |
| Cycloheptanol | - | - | - | 2344 b | −11.6 | −7.6 |
| 25 e | −32 | 24 | - | - | - | |
| - | - | - | 2200 f | −12.4 | −6.7 | |
| 68 i | −12.5 | 2 | 2197 i | −12.4 | −6.7 | |
| Cyclohexanol | - | - | - | 707 b | −6.1 | −10.2 |
| - | - | - | 701 f | −6.3 | −9.9 | |
| 62 j | −12.8 | 2.7 | 776 j | −6.6 | −9.8 | |
| Cyclooctanol | - | - | - | 4425 b | −15.7 | −5.1 |
| 28 e | −40 | 32 | - | - | - | |
| 235 i | −3.9 | −9.5 | 4405 i | −16.4 | −4.4 | |
| Cyclopentanol | - | - | - | 168 b | −3.9 | −8.8 |
| - | - | - | 175 f | −4.6 | −8.2 | |
| 83 e | −8.8 | −2.1 | - | - | - | |
| 36 i | −11.5 | 2.6 | 172 i | −4.6 | −8.2 | |
| Ethanol | 7 e | −2.5 | −2.2 | - | - | - |
| 7184 g | −0.9 | −21.0 | 1319 g | 1.1 | −18.9 | |
| 1-Heptanol | 1168 d | −22.8 | 5.3 | - | - | - |
| 377 e | −20.6 | 5.9 | - | - | - | |
| 24,113 g | −34.6 | 9.6 | 17,459 g | −7.9 | −16.3 | |
| 1503 k | −28.6 | 10.4 | - | - | - | |
| 1-Hexanol | 705 d | −18.2 | 1.9 | - | - | - |
| 523 e | −13.9 | −1.6 | - | - | - | |
| 840 f | −17.5 | 0.8 | - | - | - | |
| 7788 g | −29.1 | 6.9 | 5871 g | 0.6 | −22.1 | |
| 906 k | −21.3 | 4.5 | - | - | - | |
| 4-Iodophenol | 881 l | −26.3 | 9.5 | 955 l | −16.1 | −0.9 |
| Methanol | 0 g | - | - | 0 g | - | - |
| 4-Methylphenol | 37 c | −17.7 | 8.6 | 251 c | −12.5 | −1.2 |
| 4-Nitrophenol | 104 l | −23 | 11.5 | 296 l | −10.2 | −3.9 |
| 219 c | −25.8 | 12.5 | 347 c | −12.0 | −2.4 | |
| 1-Nonanol | 480 e | −36.2 | 20.9 | - | - | - |
| Nootkatone | - | - | - | 5801 m | −14.4 | −7.1 |
| 1-Octanol | 220 e | −22.0 | 9.0 | - | - | - |
| 1-Pentanol | 246 d | −14.9 | 1.3 | - | - | - |
| 287 f | −14.7 | 0.7 | - | - | - | |
| 275 e | −11.8 | −2.1 | - | - | - | |
| 18,927 g | −13.9 | −10.4 | 9153 g | 2.2 | −24.8 | |
| 428 k | −13.8 | −1.2 | - | - | - | |
| Phenol | 37 c | −10.2 | 0.6 | 93 c | −12.2 | 1.2 |
| 1-Propanol | 23 d | −6.8 | −1.0 | - | - | - |
| 27 e | −6.1 | −2.1 | - | - | - | |
| 1319 g | −6.6 | −11.2 | 1168 g | 1.9 | −19.4 | |