| Crystal data |
| Chemical formula |
C16H20O4Si |
C16H20GeO4
|
|
M
r
|
304.41 |
348.91 |
| Crystal system, space group |
Monoclinic, P21/n
|
Monoclinic, P21/n
|
| Temperature (K) |
100 |
100 |
|
a, b, c (Å) |
14.2044 (7), 14.2458 (7), 15.4851 (8) |
14.3828 (5), 14.2069 (5), 15.3594 (6) |
| β (°) |
102.605 (2) |
101.159 (1) |
|
V (Å3) |
3057.9 (3) |
3079.13 (19) |
|
Z
|
8 |
8 |
| Radiation type |
Mo Kα |
Mo Kα |
| μ (mm−1) |
0.17 |
2.00 |
| Crystal size (mm) |
0.68 × 0.54 × 0.48 |
0.19 × 0.16 × 0.08 |
| |
| Data collection |
| Diffractometer |
Bruker D8 VENTURE |
Bruker D8 VENTURE |
| Absorption correction |
Multi-scan (SADABS; Krause et al., 2015 ▸) |
Multi-scan (SADABS; Krause et al., 2015 ▸) |
|
T
min, T
max
|
0.532, 0.570 |
0.496, 0.568 |
| No. of measured, independent and observed [I > 2σ(I)] reflections |
371220, 9331, 8779 |
71639, 13541, 10143 |
|
R
int
|
0.036 |
0.046 |
| (sin θ/λ)max (Å−1) |
0.714 |
0.807 |
| |
| Refinement |
|
R[F
2 > 2σ(F
2)], wR(F
2), S
|
0.037, 0.103, 1.03 |
0.032, 0.077, 1.02 |
| No. of reflections |
9331 |
13541 |
| No. of parameters |
419 |
539 |
| H-atom treatment |
H atoms treated by a mixture of independent and constrained refinement |
All H-atom parameters refined |
| Δρmax, Δρmin (e Å−3) |
0.89, −0.38 |
0.67, −0.56 |
