| 21 | 22 † | 23 | 24 | 25 | |
|---|---|---|---|---|---|
| Formula | C6H3Cl3O·C6H5Cl2N | C6H3Cl3O·C6H5Cl2N | C7H6O3·C7H8N2O | C7H6O3·C7H8N2O | C14H12O8·2C7H8N2O |
| Crystal system | Triclinic | Triclinic | Monoclinic | Monoclinic | Triclinic |
| Space group |
|
|
C2/c | P21/c |
|
| a (Å) | 7.1441 (8) | 7.2060 (8) | 24.698 (2) | 12.410 (15) | 4.760 (2) |
| b (Å) | 9.3027 (10) | 9.2558 (10) | 5.1072 (5) | 5.124 (6) | 11.501 (6) |
| c (Å) | 11.8726 (13) | 11.3203 (12) | 20.6682 (19) | 20.06 (2) | 12.539 (6) |
| α (°) | 77.966 (5) | 99.693 (7) | 90 | 90 | 77.081 (6) |
| β (°) | 74.889 (5) | 99.616 (7) | 99.673 (12) | 92.901 (14) | 86.975 (6) |
| γ (°) | 77.979 (5) | 101.387 (7) | 90 | 90 | 81.302 (6) |
| Volume (Å3) | 735.06 (14) | 713.76 (14) | 2570.0 (4) | 1274 (2) | 661.3 (5) |
| Z | 2 | 2 | 8 | 4 | 1 |
| CCDC No. | 962095 | 967791 | 962096 | 962097 | 962098 |
†
Structures 20 and 22 are reported using their formal reduced cells, which have obtuse rather than acute angles. The cells are nonetheless comparable with those of 11, 15, 16, 17, 18 and 21; all of these cocrystals are essentially isostructural.