Table 1.
Theoretical parameters of 1 and 5 and their corresponding dimers.
| Atomic Charge
|
||||
|---|---|---|---|---|
| Structures | ΔGf(kcal/mol) | Torsion angle HNBO (degrees) | O | N-H |
| 1 | −86,150.3 | 46.1 | −0.331 | 0.051 |
| 5 | −62,189.5 | 0.53; 7.32a | −0.383 | 0.036 |
| dimer-1 | −172,337.0 | −8.8 | −0.363 | 0.122 |
| dimer-5 | −124,389.7 | 6.30; 6.96a | −0.374 | 0.096 |
The different angles are due to the unsymmetrical dimer.