Table 2. Experimental details.
| Crystal data | |
| Chemical formula | C18H18F2N2O2 |
| M r | 332.34 |
| Crystal system, space group | Monoclinic, P21/c |
| Temperature (K) | 173 |
| a, b, c (Å) | 7.0242 (6), 6.2316 (6), 17.1574 (15) |
| β (°) | 91.473 (7) |
| V (Å3) | 750.77 (12) |
| Z | 2 |
| Radiation type | Mo Kα |
| μ (mm−1) | 0.11 |
| Crystal size (mm) | 0.17 × 0.13 × 0.04 |
| Data collection | |
| Diffractometer | Stoe IPDS II two-circle |
| Absorption correction | Multi-scan (X-AREA; Stoe & Cie, 2001 ▸) |
| T min, T max | 0.362, 1.000 |
| No. of measured, independent and observed [I > 2σ(I)] reflections | 7746, 1532, 1285 |
| R int | 0.036 |
| (sin θ/λ)max (Å−1) | 0.625 |
| Refinement | |
| R[F 2 > 2σ(F 2)], wR(F 2), S | 0.041, 0.101, 1.08 |
| No. of reflections | 1532 |
| No. of parameters | 109 |
| H-atom treatment | H-atom parameters constrained |
| Δρmax, Δρmin (e Å−3) | 0.18, −0.16 |