| Crystal data |
| Chemical formula |
C16H20O4
|
|
M
r
|
276.32 |
| Crystal system, space group |
Orthorhombic, P212121
|
| Temperature (K) |
100 |
|
a, b, c (Å) |
8.1297 (4), 11.8232 (6), 15.7213 (9) |
|
V (Å3) |
1511.12 (14) |
|
Z
|
4 |
| Radiation type |
Cu Kα |
| μ (mm−1) |
0.71 |
| Crystal size (mm) |
0.12 × 0.10 × 0.06 |
| |
| Data collection |
| Diffractometer |
Bruker APEXII CCD |
| Absorption correction |
Multi-scan (SADABS;Bruker, 2016 ▸) |
|
T
min, T
max
|
0.700, 0.754 |
| No. of measured, independent and observed [I > 2σ(I)] reflections |
28627, 3078, 3054 |
|
R
int
|
0.027 |
| (sin θ/λ)max (Å−1) |
0.625 |
| |
| Refinement |
|
R[F
2 > 2σ(F
2)], wR(F
2), S
|
0.023, 0.060, 1.07 |
| No. of reflections |
3078 |
| No. of parameters |
184 |
| H-atom treatment |
H-atom parameters constrained |
| Δρmax, Δρmin (e Å−3) |
0.18, −0.12 |
| Absolute structure |
Flack x determined using 1293 quotients [(I
+)−(I
−)]/[(I
+)+(I
−)] (Parsons et al., 2013 ▸) |
| Absolute structure parameter |
0.03 (2) |
