Table 1. Hydrogen-bond geometry (Å, °).
| D—H⋯A | D—H | H⋯A | D⋯A | D—H⋯A |
|---|---|---|---|---|
| O1—H1A⋯O2i | 0.82 | 1.97 | 2.771 (4) | 165 |
Symmetry code: (i) 
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