Table 1. Hydrogen-bond geometry (Å, °).
| D—H⋯A | D—H | H⋯A | D⋯A | D—H⋯A |
|---|---|---|---|---|
| C3—H3⋯O2i | 0.93 | 2.70 | 3.413 (3) | 135 |
| C1—H1⋯O1i | 1.03 (3) | 2.36 (3) | 3.307 (3) | 153 (2) |
Symmetry code: (i) 
.
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