Table 1. Crystallographic Data and the Refinement Parameters of the 2c4n Salts.
| structure details | 2c4n.a | 2c4n.b | 2c4n.c | 2c4n.d | 2c4n.e | 2c4n.f | 2c4n.g | 2c4n.h |
| CCDC number | 961164 | 961165 | 961166 | 961167 | 961168 | 1023271 | 961169 | 992132 |
| formula | C14H12ClN2O6 | C28H24Cl2N4O13 | C14H12ClN2O6 | C10H8ClN3O4S | C14H11ClN4O4 | C11H9ClN4O4 | C12H10ClN3O4 | C12H10ClN3O4 |
| Mr | 338.70 | 695.42 | 338.70 | 301.71 | 334.72 | 296.67 | 295.68 | 295.68 |
| crystal system | triclinic | triclinic | orthorhombic | triclinic | monoclinic | triclinic | triclinic | triclinic |
| space group | P1̅ | P1̅ | Pbca | P1̅ | P21/c | P1̅ | P1̅ | P1̅ |
| a/Å | 8.1717(14) | 10.856(3) | 7.2428(3) | 7.0003(11) | 11.7902(5) | 6.7950(5) | 5.7224(4) | 5.9445(3) |
| b/Å | 8.2522(14) | 11.154(3) | 13.0520(6) | 8.2219(19) | 11.3110(5) | 7.4766(5) | 10.5903(7) | 10.7390(5) |
| c/Å | 10.856(18) | 14.213(3) | 29.5375(13) | 10.551(17) | 12.3892(6) | 13.7306(9) | 11.2992(7) | 10.9139(5) |
| α/deg | 79.563(2) | 106.325(3) | 90.00 | 85.243(3) | 90.00 | 77.211(4) | 95.938(10) | 98.910(2) |
| β/deg | 89.113(2) | 104.731(3) | 90.00 | 78.471(2) | 109.790(10) | 88.200(4) | 103.751(10) | 95.465(2) |
| γ/deg | 83.600(2) | 106.209(3) | 90.00 | 79.703(2) | 90.00 | 69.323(4) | 94.7420(10) | 105.836(2) |
| volume/Å3 | 715.5(2) | 1479.1(6) | 2792.3(2) | 584.77(19) | 1554.63(12) | 635.6(8) | 657.47(8) | 655.22(5) |
| Z | 2 | 2 | 8 | 2 | 4 | 2 | 2 | 2 |
| density [g/cm3] | 1.577 | 1.562 | 1.611 | 1.714 | 1.430 | 1.5 | 1.494 | 1.499 |
| μ (Mo Kα) [mm–1] | 0.302 | 0.297 | 0.309 | 0.519 | 0.271 | 0.320 | 0.308 | 0.309 |
| T/K | 296(2) | 296(2) | 293(2) | 296(2) | 296(2) | 296(2) | 296 (2) | 296 (2) |
| reflections collected | 2773 | 5795 | 3236 | 2349 | 3181 | 2396 | 2567 | 2591 |
| unique reflections | 2227 | 4932 | 2824 | 2164 | 2440 | 2117 | 2184 | 2328 |
| parameter refined | 252 | 520 | 208 | 176 | 224 | 213 | 193 | 193 |
| R1 (I > 2σ) | 0.0468 | 0.0438 | 0.0449 | 0.0265 | 0.0495 | 0.0726 | 0.0319 | 0.0326 |
| wR2 (I < 2σ) | 0.1341 | 0.1510 | 0.1616 | 0.0659 | 0.1360 | 0.2368 | 0.0878 | 0.1155 |
| GOF | 0.922 | 1.149 | 1.354 | 1.263 | 1.525 | 1.447 | 0.625 | 0.951 |