Table 1. Hydrogen-bond geometry (Å, °).
| D—H⋯A | D—H | H⋯A | D⋯A | D—H⋯A |
|---|---|---|---|---|
| C7—H7A⋯O2i | 0.97 | 2.57 | 3.5226 (15) | 166 |
| C11—H11A⋯O1ii | 0.97 | 2.55 | 3.4790 (15) | 160 |
Symmetry codes: (i) 
; (ii) 
.
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