Table 1.
The values [Hz] of selected coupling constants. Boldfaced values illustrate the trends discussed in the text.
| compound | 2JC3-F4 | 1JC4-F4 | 2JC5-F4 | 3JH3-F4 | 2JH4-F4 | 3JH5-F4 | ||
 β-63 |
18.6 | 180.9 | 24.2 | 15.6 | 50.8 | 2.5 | ||
 α-68 |
19.1 | 180.1 | 18.1 | 28.9 | 50.5 | 30.3 | ||
| 4JC3-F6 | 3JC4-F6 | 2JC5-F6 | 1JC6-F6 | 3JH5-F6 | 2JH6-F6 | 2JH6'-F6 | ||
 α-71 |
0.7 | 7 | 17.9 | 171.3 | 27.1 | 48.2 | 48.2 | |
 α-72 |
1.1 | 2.5 | 13.0 | 166.8 | 14.6 | 46.4 | 48.1 | |
| 3JC2-F4 | 2JC3-F4 | 1JC4-F4 | 2JC5-F4 | 3JC4-F6 | 2JC5-F6 | 1JC6-F6 | ||
 α-64 |
8.0 | 18.5 | 181.2 | 23.7 | 7.4 | 18.2 | 172.5 | |
 α-69 |
2.7 | 18.8 | 180.1 | 17.7 | 5.9 | 23.1 | 168.1 | |
| 5JH1-F4 | 3JH3-F4 | 2JH4-F4 | 3JH5-F4 | 3JH5-F6 | 2JH6-F6 | 2JH6'-F6 | ||
 α-64 |
3.3 | 14.8 | 50.6 | 4.1 | 26.6 | 48.1 | 47.5 | |
 α-69 |
n/a | 28.9 | 51.0 | 30.3 | 12.7 | 47.3 | 46.2 | |