| Crystal data |
| Chemical formula |
C17H29BrOSi |
C17H30OSi |
C18H35NSi2
|
|
M
r
|
357.40 |
278.50 |
321.65 |
| Crystal system, space group |
Monoclinic, P21/c
|
Orthorhombic, P
n
m
a
|
Orthorhombic, C
m
c
m
|
| Temperature (K) |
100 |
100 |
173 |
|
a, b, c (Å) |
13.0955 (1), 15.3457 (2), 9.0449 (1) |
14.47237 (14), 17.4657 (2), 6.73933 (7) |
12.199 (3), 12.091 (3), 14.177 (3) |
| α, β, γ (°) |
90, 94.617 (1), 90 |
90, 90, 90 |
90, 90, 90 |
|
V (Å3) |
1811.76 (3) |
1703.50 (3) |
2091.1 (8) |
|
Z
|
4 |
4 |
4 |
| Radiation type |
Cu Kα |
Cu Kα |
Mo Kα |
| μ (mm−1) |
3.67 |
1.13 |
0.17 |
| Crystal size (mm) |
0.42 × 0.21 × 0.13 |
0.31 × 0.11 × 0.07 |
0.19 × 0.16 × 0.10 |
| |
| Data collection |
| Diffractometer |
Rigaku Oxford Diffraction SuperNova, Dual, Cu at zero, Pilatus 200K |
Rigaku Oxford Diffraction SuperNova, Dual, Cu at zero, Pilatus 200K |
Bruker APEXII CCD |
| Absorption correction |
Multi-scan (CrysAlis PRO; Rigaku OD, 2018 ▸) |
Multi-scan (CrysAlis PRO; Rigaku OD, 2018 ▸) |
ψ scan (SADABS; Bruker, 2014 ▸) |
|
T
min, T
max
|
0.507, 1.000 |
0.773, 1.000 |
0.667, 0.746 |
| No. of measured, independent and observed [I > 2σ(I)] reflections |
20327, 3935, 3924 |
17855, 1793, 1663 |
8996, 1317, 1082 |
|
R
int
|
0.024 |
0.046 |
0.039 |
| (sin θ/λ)max (Å−1) |
0.639 |
0.626 |
0.652 |
| |
| Refinement |
|
R[F
2 > 2σ(F
2)], wR(F
2), S
|
0.031, 0.073, 1.10 |
0.033, 0.093, 1.06 |
0.047, 0.126, 1.04 |
| No. of reflections |
3935 |
1793 |
1317 |
| No. of parameters |
191 |
99 |
64 |
| No. of restraints |
0 |
0 |
54 |
| H-atom treatment |
H-atom parameters constrained |
H-atom parameters constrained |
H-atom parameters constrained |
| Δρmax, Δρmin (e Å−3) |
0.66, −0.37 |
0.26, −0.28 |
0.36, −0.26 |
