Table 3. Experimental details.
| Crystal data | |
| Chemical formula | C16H14N2O2 |
| M r | 266.29 |
| Crystal system, space group | Monoclinic, P21/c |
| Temperature (K) | 296 |
| a, b, c (Å) | 8.8644 (4), 19.9222 (8), 8.1736 (3) |
| β (°) | 107.240 (1) |
| V (Å3) | 1378.59 (10) |
| Z | 4 |
| Radiation type | Mo Kα |
| μ (mm−1) | 0.09 |
| Crystal size (mm) | 0.40 × 0.21 × 0.06 |
| Data collection | |
| Diffractometer | Bruker APEXII CCD |
| Absorption correction | Multi-scan (SADABS; Bruker, 2003 ▸) |
| T min, T max | 0.684, 0.746 |
| No. of measured, independent and observed [I > 2σ(I)] reflections | 22343, 4176, 2332 |
| R int | 0.058 |
| (sin θ/λ)max (Å−1) | 0.714 |
| Refinement | |
| R[F 2 > 2σ(F 2)], wR(F 2), S | 0.062, 0.146, 1.04 |
| No. of reflections | 4176 |
| No. of parameters | 188 |
| H-atom treatment | H atoms treated by a mixture of independent and constrained refinement |
| Δρmax, Δρmin (e Å−3) | 0.15, −0.14 |