Table 1. Hydrogen-bond geometry (Å, °).
| D—H⋯A | D—H | H⋯A | D⋯A | D—H⋯A |
|---|---|---|---|---|
| N1—H1N⋯S1i | 0.855 (18) | 2.508 (18) | 3.3465 (13) | 167.1 (15) |
| N2—H2N⋯S1ii | 0.806 (15) | 2.713 (16) | 3.3755 (14) | 140.7 (13) |
Symmetry codes: (i) 
; (ii) 
.
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