Table 2. Experimental details.
| Crystal data | |
| Chemical formula | C20H23NO2 |
| M r | 309.39 |
| Crystal system, space group | Orthorhombic, P212121 |
| Temperature (K) | 173 |
| a, b, c (Å) | 6.1313 (2), 7.3710 (2), 38.1143 (11) |
| V (Å3) | 1722.53 (9) |
| Z | 4 |
| Radiation type | Mo Kα |
| μ (mm−1) | 0.08 |
| Crystal size (mm) | 0.31 × 0.29 × 0.29 |
| Data collection | |
| Diffractometer | Rigaku Saturn 724+ CCD |
| Absorption correction | Numerical (CrystalClear-SM Expert; Rigaku, 2009 ▸) |
| T min, T max | 0.985, 0.985 |
| No. of measured, independent and observed [I > 2σ(I)] reflections | 16094, 3877, 3614 |
| R int | 0.021 |
| (sin θ/λ)max (Å−1) | 0.660 |
| Refinement | |
| R[F 2 > 2σ(F 2)], wR(F 2), S | 0.036, 0.080, 1.05 |
| No. of reflections | 3877 |
| No. of parameters | 212 |
| H-atom treatment | H-atom parameters constrained |
| Δρmax, Δρmin (e Å−3) | 0.16, −0.15 |
| Absolute structure | Flack x determined using 1346 quotients [(I +)−(I −)]/[(I +)+(I −)] (Parsons et al., 2013 ▸) |
| Absolute structure parameter | 0.1 (4) |