Table 3. Hydrogen-bond geometry (Å, °) for (I) .
| D—H⋯A | D—H | H⋯A | D⋯A | D—H⋯A |
|---|---|---|---|---|
| C4—H4⋯O2i | 0.95 | 2.68 | 3.2748 (14) | 121 |
| C3—H3⋯O1ii | 0.95 | 2.63 | 3.3463 (13) | 133 |
| C5—H5⋯O1ii | 0.95 | 2.69 | 3.4127 (14) | 133 |
Symmetry codes: (i) 
; (ii) 
.
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