Table 1.
Relative energy differences in (kcal/mol) and the dipole moments (in D) for the studied conformers.
| G [kcal/mol] | μ | |
| trans-6a | 0.0 | 4.9475 |
| trans-6a’ * | 2.9 | 7.9465 |
| cis-6 | 4.1 | 13.5871 |
| trans-6b | 5.0 | 9.5114 |
* The structure of conformer trans-6a’ is shown on Figure S40 (SI).