Table 2. Hydrogen-bond geometry (Å, °).
| D—H⋯A | D—H | H⋯A | D⋯A | D—H⋯A |
|---|---|---|---|---|
| N2—H2⋯N1 | 0.869 (13) | 2.703 (15) | 3.2353 (14) | 120.8 (12) |
| N1—H1⋯N2i | 0.874 (13) | 2.734 (14) | 3.5391 (15) | 153.8 (14) |
Symmetry code: (i) 
.
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