Table 2. Experimental details.

Crystal data
Chemical formula	C16H19N2O+·CF3O3S−
M r	404.40
Crystal system, space group	Monoclinic, P21/c
Temperature (K)	100
a, b, c (Å)	13.0645 (11), 11.0190 (9), 13.4050 (11)
β (°)	107.826 (3)
V (Å3)	1837.1 (3)
Z	4
Radiation type	Cu Kα
μ (mm−1)	2.08
Crystal size (mm)	0.19 × 0.14 × 0.11
Data collection
Diffractometer	Bruker D8 Venture Photon 2
Absorption correction	Multi-scan (SADABS; Krause et al., 2015 ▸)
T min, T max	0.779, 1.000
No. of measured, independent and observed [I > 2σ(I)] reflections	29494, 3598, 3389
R int	0.053
(sin θ/λ)max (Å−1)	0.617
Refinement
R[F 2 > 2σ(F 2)], wR(F 2), S	0.031, 0.080, 1.07
No. of reflections	3598
No. of parameters	246
H-atom treatment	H-atom parameters constrained
Δρmax, Δρmin (e Å−3)	0.40, −0.38

Computer programs: APEX3 (Bruker, 2017 ▸), SAINT (Bruker, 2016 ▸), SHELXT2014/5 (Sheldrick, 2015a ▸), SHELXL2016/6 (Sheldrick, 2015b ▸), Mercury (Macrae et al., 2020 ▸), and publCIF (Westrip, 2010 ▸).