Table 2. Hydrogen-bond geometry (Å, °).
| D—H⋯A | D—H | H⋯A | D⋯A | D—H⋯A |
|---|---|---|---|---|
| N1—H1N⋯O1 | 0.903 (18) | 1.936 (18) | 2.6651 (18) | 136.6 (14) |
| O2—H1O⋯O1i | 0.90 (2) | 1.80 (2) | 2.6886 (17) | 173 (2) |
| C9—H9⋯O1ii | 0.93 | 2.65 (2) | 3.576 (2) | 175 (2) |
Symmetry codes: (i) 
; (ii) 
.
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