Table 3. Experimental details.
| Crystal data | |
| Chemical formula | C28H22N4O9 |
| M r | 558.49 |
| Crystal system, space group | Monoclinic, C2/c |
| Temperature (K) | 100 |
| a, b, c (Å) | 15.954 (4), 5.4599 (12), 28.397 (6) |
| β (°) | 92.299 (5) |
| V (Å3) | 2471.7 (10) |
| Z | 4 |
| Radiation type | Mo Kα |
| μ (mm−1) | 0.11 |
| Crystal size (mm) | 0.38 × 0.24 × 0.14 |
| Data collection | |
| Diffractometer | Bruker APEX DUO CCD area detector |
| Absorption correction | Multi-scan (SADABS; Bruker, 2012 ▸) |
| T min, T max | 0.879, 0.956 |
| No. of measured, independent and observed [I > 2σ(I)] reflections | 35811, 2830, 2591 |
| R int | 0.038 |
| (sin θ/λ)max (Å−1) | 0.650 |
| Refinement | |
| R[F 2 > 2σ(F 2)], wR(F 2), S | 0.100, 0.353, 1.15 |
| No. of reflections | 2830 |
| No. of parameters | 192 |
| H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
| Δρmax, Δρmin (e Å−3) | 0.31, −0.31 |