| Crystal data |
| Chemical formula |
C33H30Si |
C27H26OSi |
|
M
r
|
454.66 |
394.57 |
| Crystal system, space group |
Triclinic, P
|
Monoclinic, P21/c
|
| Temperature (K) |
173 |
173 |
|
a, b, c (Å) |
10.3879 (7), 10.5037 (7), 13.6350 (9) |
11.8576 (5), 13.2995 (6), 14.3948 (6) |
| α, β, γ (°) |
68.8212 (7), 70.6364 (7), 84.7947 (8) |
90, 110.363 (3), 90 |
|
V (Å3) |
1308.06 (15) |
2128.20 (16) |
|
Z
|
2 |
4 |
| Radiation type |
Mo Kα |
Cu Kα |
| μ (mm−1) |
0.11 |
1.08 |
| Crystal size (mm) |
0.21 × 0.21 × 0.17 |
0.10 × 0.09 × 0.08 |
| |
| Data collection |
| Diffractometer |
Bruker APEXII CCD |
Bruker APEXII CCD |
| Absorption correction |
Multi-scan (SADABS; Bruker, 2013 ▸) |
Multi-scan (SADABS; Bruker, 2013 ▸
|
|
T
min, T
max
|
0.695, 0.745 |
0.624, 0.754 |
| No. of measured, independent and observed [I > 2σ(I)] reflections |
16773, 4803, 3734 |
11901, 4113, 2414 |
|
R
int
|
0.036 |
0.096 |
| (sin θ/λ)max (Å−1) |
0.603 |
0.617 |
| |
| Refinement |
|
R[F
2 > 2σ(F
2)], wR(F
2), S
|
0.045, 0.120, 1.08 |
0.062, 0.171, 0.97 |
| No. of reflections |
4803 |
4113 |
| No. of parameters |
308 |
267 |
| H-atom treatment |
H-atom parameters constrained |
H atoms treated by a mixture of independent and constrained refinement |
| Δρmax, Δρmin (e Å−3) |
0.34, −0.22 |
0.29, −0.36 |
