Table 2.
Possible combinations of two-component couplings for various common odd-membered monocyclic rings.
| Ring size | Possible combinations | Number of combinations | ||||
| 3 | 2,1 | 1 | ||||
| 5 | 4,1 | 3,2 | 2 | |||
| 7 | 6,1 | 5,2 | 4,3 | 3 | ||
| 9 | 8,1 | 7,2 | 6,3 | 5,4 | 4 | |
| 11 | 10,1 | 9,2 | 8,3 | 7,4 | 6,5 | 5 |
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