Table 2. Experimental details.
| Crystal data | |
| Chemical formula | C17H12Cl2N2O |
| M r | 331.19 |
| Crystal system, space group | Monoclinic, P21/c |
| Temperature (K) | 296 |
| a, b, c (Å) | 5.8511 (6), 12.5544 (15), 21.069 (2) |
| β (°) | 92.666 (8) |
| V (Å3) | 1546.0 (3) |
| Z | 4 |
| Radiation type | Mo Kα |
| μ (mm−1) | 0.42 |
| Crystal size (mm) | 0.74 × 0.29 × 0.05 |
| Data collection | |
| Diffractometer | Stoe IPDS 2 |
| Absorption correction | Integration (X-RED32; Stoe & Cie, 2002 ▸) |
| T min, T max | 0.844, 0.973 |
| No. of measured, independent and observed [I > 2σ(I)] reflections | 8675, 2726, 1196 |
| R int | 0.103 |
| (sin θ/λ)max (Å−1) | 0.596 |
| Refinement | |
| R[F 2 > 2σ(F 2)], wR(F 2), S | 0.056, 0.094, 0.88 |
| No. of reflections | 2726 |
| No. of parameters | 199 |
| H-atom treatment | H-atom parameters constrained |
| Δρmax, Δρmin (e Å−3) | 0.15, −0.20 |