Table 2. Hydrogen-bond geometry (Å, °).
| D—H⋯A | D—H | H⋯A | D⋯A | D—H⋯A |
|---|---|---|---|---|
| C9—H9B⋯O1i | 0.96 | 2.50 | 3.372 (5) | 151 |
| C7—H7B⋯O3 | 0.97 | 2.57 | 3.044 (4) | 110 |
| C9—H9C⋯O3 | 0.96 | 2.59 | 3.152 (4) | 117 |
Symmetry code: (i) 
.
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