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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N1—H1N⋯S2i	0.80 (3)	2.60 (3)	3.375 (2)	164 (2)
N3—H3N⋯S1ii	0.76 (2)	2.67 (2)	3.3131 (18)	143 (2)
N3—H3N⋯S2ii	0.76 (2)	2.67 (2)	3.2846 (18)	140 (2)

Symmetry codes: (i) ; (ii) .