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. 2020 May 22;76(Pt 6):896–899. doi: 10.1107/S2056989020006441

Table 3. Experimental details.

  1 2
Crystal data
Chemical formula C21H18 C30H24O2
M r 270.35 416.49
Crystal system, space group Orthorhombic, P b c a Orthorhombic, P212121
Temperature (K) 100 100
a, b, c (Å) 12.9844 (2), 11.9583 (1), 19.3729 (2) 7.3431 (1), 11.5468 (1), 25.7555 (3)
V3) 3008.06 (6) 2183.79 (4)
Z 8 4
Radiation type Mo Kα Mo Kα
μ (mm−1) 0.07 0.08
Crystal size (mm) 0.38 × 0.25 × 0.15 0.27 × 0.15 × 0.13
 
Data collection
Diffractometer XtaLAB Synergy, Single source at offset/far, HyPix3000 XtaLAB Synergy, Single source at offset/far, HyPix3000
Absorption correction Empirical (using intensity measurements) (CrysAlis PRO; Rigaku OD, 2019) Empirical (using intensity measurements) (CrysAlis PRO; Rigaku OD, 2019)
T min, T max 0.404, 1.000 0.735, 1.000
No. of measured, independent and observed [I > 2σ(I)] reflections 74031, 3353, 2967 54562, 4798, 4437
R int 0.030 0.036
(sin θ/λ)max−1) 0.648 0.647
 
Refinement
R[F 2 > 2σ(F 2)], wR(F 2), S 0.036, 0.094, 1.08 0.034, 0.082, 1.04
No. of reflections 3353 4798
No. of parameters 190 291
H-atom treatment H-atom parameters constrained H-atom parameters constrained
Δρmax, Δρmin (e Å−3) 0.20, −0.19 0.16, −0.19
Absolute structure Flack x determined using 1774 quotients [(I +)−(I )]/[(I +)+(I )] (Parsons et al., 2013)
Absolute structure parameter −0.3 (4)

Computer programs: CrysAlis PRO (Rigaku OD, 2019), SHELXT (Sheldrick, 2015a ), SHELXL (Sheldrick, 2015b ) and OLEX2 (Dolomanov et al., 2009).