Table 2. Hydrogen-bond geometry (Å, °).
| D—H⋯A | D—H | H⋯A | D⋯A | D—H⋯A |
|---|---|---|---|---|
| C3—H3A⋯Br2i | 0.93 | 2.81 | 3.731 (5) | 171 |
| C20—H20A⋯Br2ii | 0.93 | 2.88 | 3.776 (5) | 162 |
Symmetry codes: (i) 
; (ii) 
.
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