Table 1. Experimental details.

Crystal data
Chemical formula	C26H22N2·C6Cl4I2
M r	830.11
Crystal system, space group	Monoclinic, P21/n
Temperature (K)	100
a, b, c (Å)	9.6519 (6), 28.3120 (16), 11.1909 (6)
β (°)	92.154 (1)
V (Å3)	3055.9 (3)
Z	4
Radiation type	Mo Kα
μ (mm−1)	2.43
Crystal size (mm)	0.55 × 0.23 × 0.17
Data collection
Diffractometer	Bruker APEXII CCD
Absorption correction	Multi-scan (SADABS; Bruker, 2014 ▸)
T min, T max	0.690, 0.746
No. of measured, independent and observed [I > 2σ(I)] reflections	39572, 6730, 6601
R int	0.024
(sin θ/λ)max (Å−1)	0.641
Refinement
R[F 2 > 2σ(F 2)], wR(F 2), S	0.056, 0.118, 1.39
No. of reflections	6730
No. of parameters	361
H-atom treatment	H-atom parameters constrained
Δρmax, Δρmin (e Å−3)	1.85, −1.11

Computer programs: SMART and SAINT (Bruker, 2014 ▸), SHELXT2018/2 (Sheldrick, 2015a ▸), SHELXL2018/3 (Sheldrick, 2015b ▸) and X-SEED (Barbour, 2020 ▸).