Table 4. Experimental details.
| Crystal data | |
| Chemical formula | C20H15Cl2N3O2 |
| M r | 400.25 |
| Crystal system, space group | Monoclinic, P21/c |
| Temperature (K) | 100 |
| a, b, c (Å) | 9.662 (1), 27.010 (3), 7.4782 (8) |
| β (°) | 111.571 (2) |
| V (Å3) | 1814.9 (3) |
| Z | 4 |
| Radiation type | Mo Kα |
| μ (mm−1) | 0.38 |
| Crystal size (mm) | 0.24 × 0.21 × 0.02 |
| Data collection | |
| Diffractometer | Bruker D8 QUEST PHOTON-III CCD |
| Absorption correction | Multi-scan (SADABS; Krause et al., 2015 ▸) |
| Tmin, Tmax | 0.864, 0.986 |
| No. of measured, independent and observed [I > 2σ(I)] reflections | 27440, 4180, 2631 |
| R int | 0.099 |
| (sin θ/λ)max (Å−1) | 0.650 |
| Refinement | |
| R[F2 > 2σ(F 2)], wR(F 2), S | 0.053, 0.126, 1.01 |
| No. of reflections | 4180 |
| No. of parameters | 255 |
| H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
| Δρmax, Δρmin (e Å−3) | 0.50, −0.37 |