Table 1. Hydrogen-bond geometry (Å, °).
| D—H⋯A | D—H | H⋯A | D⋯A | D—H⋯A |
|---|---|---|---|---|
| C6—H6⋯O1i | 0.93 | 2.51 | 3.3973 (17) | 160 |
| C8—H8A⋯O1i | 0.97 | 2.53 | 3.4475 (19) | 157 |
| C2—H2⋯O2ii | 0.93 | 2.66 | 3.3911 (17) | 136 |
Symmetry codes: (i) 
; (ii) 
.
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