Table 2. Hydrogen-bond geometry (Å, °).

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N1—H1B⋯S3	0.88	2.58	3.369 (2)	150
N1—H1A⋯S2ii	0.88	2.60	3.466 (2)	166
N2—H2A⋯S3iii	0.88	2.78	3.615 (2)	158
N2—H2B⋯N5iv	0.88	2.04	2.922 (3)	178
N3—H3B⋯S3	0.88	2.82	3.645 (2)	157
N3—H3A⋯S1v	0.88	2.73	3.531 (2)	153
N4—H4B⋯S3vi	0.88	2.61	3.482 (2)	173
N4—H4A⋯N5vii	0.88	2.50	3.056 (3)	121

Symmetry codes: (ii) ; (iii) ; (iv) ; (v) ; (vi) ; (vii) .