Table 2. Hydrogen-bond geometry (Å, °).
| D—H⋯A | D—H | H⋯A | D⋯A | D—H⋯A |
|---|---|---|---|---|
| N2—H2B⋯O2i | 0.90 | 2.26 | 3.099 (7) | 155 |
| N2—H2B⋯O3i | 0.90 | 2.55 | 3.229 (7) | 133 |
| N2—H2A⋯O3ii | 0.90 | 2.07 | 2.948 (7) | 166 |
Symmetry codes: (i) 
; (ii) 
.
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