Table 2. Hydrogen-bond geometry (Å, °).
| D—H⋯A | D—H | H⋯A | D⋯A | D—H⋯A |
|---|---|---|---|---|
| O1—H1⋯N1 | 0.82 | 1.83 | 2.554 (4) | 147.00 |
| N2—H2⋯O2i | 0.77 (4) | 2.30 (4) | 3.016 (4) | 156 (4) |
Symmetry code: (i) 
.
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