Table 2. Hydrogen-bond geometry (Å, °).
| D—H⋯A | D—H | H⋯A | D⋯A | D—H⋯A |
|---|---|---|---|---|
| N1—HN1⋯N2i | 0.78 (3) | 2.26 (3) | 3.022 (4) | 166 (3) |
| N2—HN2A⋯O1ii | 0.87 (3) | 2.45 (3) | 3.258 (4) | 154 (3) |
Symmetry codes: (i) 
; (ii) 
.
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