Table 2. Hydrogen-bond geometry (Å, °).
| D—H⋯A | D—H | H⋯A | D⋯A | D—H⋯A |
|---|---|---|---|---|
| N3—H3A⋯N2i | 0.86 | 2.14 | 2.992 (4) | 170 |
| N3—H3B⋯O3ii | 0.86 | 2.08 | 2.886 (4) | 157 |
Symmetry codes: (i) 
; (ii) 
.
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