Table 2. Thermodynamic parameters for formation of H-bonded duplexes in toluene determined using 31P NMR thermal denaturation data.
| N | T m,N/K | ΔH°N/kJ mol–1 | TΔS°N (298)/kJ mol–1 | ΔG°N (298)/kJ mol–1 | log KN (298)/M–1 |
| 1 | 272 | –26 | –9 | –16 | 2.9 |
| 2 | 318 | –37 | –17 | –21 | 3.7 |
| 3 | 342 | –42 | –18 | –24 | 4.3 |