Table 7. Ditopic symmetric acceptors (X = halogen-bond donor; H = hydrogen-bond donor; A = acceptor).
| Crystal structures | Scheme | Codes |
|---|---|---|
| 8/13 |
|
I-COOH12 |
| I-COOH11 | ||
| BrF4-OH13 | ||
| BrF4-COOH11 | ||
| IF4-OX13 | ||
| IF4-OX11 | ||
| IF4-COOH13 | ||
| IF4-COOH12 | ||
| 5/13 |
|
Br-COOH11 |
| Br-COOH12 | ||
| BrF4-OX14 | ||
| BrF4-OH11 | ||
| BrF4-OH12 | ||
| 0 |
|