| Crystal data |
| Chemical formula |
C20H19NO3
|
|
M
r
|
321.36 |
| Crystal system, space group |
Triclinic, P
|
| Temperature (K) |
100 |
|
a, b, c (Å) |
6.7225 (15), 11.102 (3), 11.108 (3) |
| α, β, γ (°) |
84.894 (4), 76.890 (4), 83.580 (3) |
|
V (Å3) |
800.6 (4) |
|
Z
|
2 |
| Radiation type |
Mo Kα |
| μ (mm−1) |
0.09 |
| Crystal size (mm) |
0.30 × 0.25 × 0.20 |
| |
| Data collection |
| Diffractometer |
Bruker APEXII area detector |
| Absorption correction |
Multi-scan (SADABS; Krause et al., 2015 ▸) |
|
Tmin, Tmax
|
0.963, 0.980 |
| No. of measured, independent and observed [I > 2σ(I)] reflections |
13680, 5546, 4248 |
|
R
int
|
0.022 |
| (sin θ/λ)max (Å−1) |
0.761 |
| |
| Refinement |
|
R[F2 > 2σ(F2)], wR(F2), S
|
0.054, 0.136, 1.03 |
| No. of reflections |
5546 |
| No. of parameters |
220 |
| H-atom treatment |
H atoms treated by a mixture of independent and constrained refinement |
| Δρmax, Δρmin (e Å−3) |
0.56, −0.25 |
