Table 1. Hydrogen-bond geometry (Å, °).
| D—H⋯A | D—H | H⋯A | D⋯A | D—H⋯A |
|---|---|---|---|---|
| N1—H1B⋯S2i | 0.88 | 2.58 | 3.455 (5) | 173 |
| N3—H3B⋯S1ii | 0.88 | 2.63 | 3.396 (5) | 146 |
| N2—H2A⋯I1 | 0.88 | 2.65 | 3.511 (5) | 166 |
| N4—H4A⋯I2 | 0.88 | 2.71 | 3.567 (4) | 165 |
Symmetry codes: (i) 
; (ii) 
.
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