Table 1. Hydrogen-bond geometry (Å, °).
| D—H⋯A | D—H | H⋯A | D⋯A | D—H⋯A |
|---|---|---|---|---|
| N3—H3B⋯O1i | 0.81 (3) | 2.35 (3) | 3.038 (3) | 143 (3) |
| C4—H4A⋯Brii | 0.95 | 2.98 | 3.719 (3) | 135 |
| C12—H12A⋯O1i | 0.95 | 2.37 | 3.287 (3) | 163 |
Symmetry codes: (i) 
; (ii) 
.
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