Table 1. Hydrogen-bond geometry (Å, °).

Cg1 and Cg2 are the centroids of the S1/C15–C18 and C1–C6 rings, respectively.

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N2—H1N2⋯O1i	0.89 (2)	1.96 (2)	2.808 (2)	160 (2)
N1—H1N1⋯O1	0.85 (2)	2.02 (3)	2.704 (2)	137 (2)
C1—H1A⋯O1ii	0.95	2.58	3.410 (2)	146
C3—H3A⋯Cg1iii	0.95	2.98	3.732 (2)	137
C9—H9A⋯Cg2iv	0.95	2.84	3.649 (2)	144

Symmetry codes: (i) ; (ii) ; (iii) ; (iv) .