 | |||||||||
| Comp | 19a | 19b | 19c | 19d | 19e | 19f | 19g | 19h | 19i |
| n | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
| X | CN | CN | CN | CN | CN | CN | CN | CN | CN |
| Comp | 20a | 20b | 20c | 20d | 20e | 20f | 20g | 20h | 20i |
| n | 4 | 5 | 6 | 7 | 8 | 9 | 10 | 11 | 12 |
| X | NO2 | NO2 | NO2 | NO2 | NO2 | NO2 | NO2 | NO2 | NO2 |
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