Table 2. Hydrogen-bond geometry (Å, °).
| D—H⋯A | D—H | H⋯A | D⋯A | D—H⋯A |
|---|---|---|---|---|
| O3—H3A⋯O2i | 0.85 | 1.88 | 2.693 (4) | 160 |
| O3—H3B⋯O1ii | 0.85 | 1.94 | 2.757 (3) | 160 |
Symmetry codes: (i) 
; (ii) 
.
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