Table 1. Hydrogen-bond geometry (Å, °).
| D—H⋯A | D—H | H⋯A | D⋯A | D—H⋯A |
|---|---|---|---|---|
| N2—H2⋯O2i | 0.896 (9) | 1.972 (11) | 2.842 (2) | 163.5 (18) |
| O1—H1⋯N1 | 0.82 | 1.86 | 2.581 (2) | 146 |
Symmetry code: (i) 
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