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. 2019 Apr 12;75(Pt 5):611–615. doi: 10.1107/S2056989019004651

Table 3. Experimental details.

  (I) (II)
Crystal data
Chemical formula C18H19FN2O C18H19ClN2O
M r 298.35 314.80
Crystal system, space group Monoclinic, P21/c Monoclinic, P21/n
Temperature (K) 160 160
a, b, c (Å) 18.2525 (4), 7.07855 (16), 11.2207 (2) 13.08241 (19), 6.49259 (9), 18.5129 (3)
β (°) 98.556 (2) 105.5609 (16)
V3) 1433.59 (6) 1514.83 (4)
Z 4 4
Radiation type Cu Kα Cu Kα
μ (mm−1) 0.78 2.25
Crystal size (mm) 0.18 × 0.15 × 0.02 0.33 × 0.12 × 0.08
 
Data collection
Diffractometer XtaLAB Synergy, Dualflex, Pilatus 200K XtaLAB Synergy, Dualflex, Pilatus 200K
Absorption correction Analytical (CrysAlis PRO; Rigaku OD, 2019) Analytical (CrysAlis PRO; Rigaku OD, 2019)
T min, T max 0.921, 0.990 0.642, 0.870
No. of measured, independent and observed [I > 2σ(I)] reflections 13058, 2903, 2578 14318, 3217, 3052
R int 0.030 0.023
(sin θ/λ)max−1) 0.625 0.636
 
Refinement
R[F 2 > 2σ(F 2)], wR(F 2), S 0.080, 0.233, 1.23 0.061, 0.167, 1.08
No. of reflections 2903 3217
No. of parameters 199 199
H-atom treatment H-atom parameters constrained H-atom parameters constrained
Δρmax, Δρmin (e Å−3) 0.47, −0.38 0.81, −0.26

Computer programs: CrysAlis PRO (Rigaku OD, 2019), SHELXT (Sheldrick, 2015a ), SHELXL (Sheldrick, 2015b ), Mercury (Macrae et al., 2008) and OLEX2 (Dolomanov et al., 2009).