Table 3. Experimental details.

	C8H6O2S6	C8H6O2S4Se2
Crystal data
M r	326.49	420.29
Crystal system, space group	Monoclinic, P21/c	Monoclinic, P21/c
Temperature (K)	170	170
a, b, c (Å)	10.845 (2), 9.0387 (18), 13.370 (3)	10.960 (2), 9.1348 (18), 13.495 (3)
β (°)	108.95 (3)	108.29 (3)
V (Å3)	1239.6 (4)	1282.8 (5)
Z	4	4
Radiation type	Mo Kα	Mo Kα
μ (mm−1)	1.08	6.40
Crystal size (mm)	0.50 × 0.20 × 0.001	0.48 × 0.43 × 0.41
Data collection
Diffractometer	STOE IPDS2T	Stoe IPDS2T
Absorption correction	Numerical face indexed	Numerical face indexed
T min, T max	0.771, 0.942	0.393, 0.786
No. of measured, independent and observed [I > 2σ(I)] reflections	13324, 3344, 2636	10805, 2733, 2009
R int	0.034	0.063
(sin θ/λ)max (Å−1)	0.687	0.636
Refinement
R[F 2 > 2σ(F 2)], wR(F 2), S	0.027, 0.064, 1.03	0.029, 0.058, 0.97
No. of reflections	3344	2733
No. of parameters	147	147
H-atom treatment	H-atom parameters constrained	H-atom parameters constrained
Δρmax, Δρmin (e Å−3)	0.36, −0.34	0.41, −0.51

Computer programs: X-AREA (Stoe & Cie, 2010 ▸), SIR92 (Altomare et al., 1994 ▸), SHELXS2016/6 (Sheldrick, 2008 ▸), SHELXL2016/6 (Sheldrick, 2015 ▸), XP (Bruker, 1998 ▸), DIAMOND (Brandenburg, 2001 ▸), Mercury (Macrae et al., 2006 ▸) and CIFTAB (Sheldrick, 2015 ▸).