Table 2. Hydrogen-bond geometry (Å, °).
| D—H⋯A | D—H | H⋯A | D⋯A | D—H⋯A |
|---|---|---|---|---|
| C8—H8⋯Br2i | 0.93 | 2.87 | 3.651 (5) | 142 |
| N6—H6B⋯N5ii | 0.89 | 2.47 | 2.996 (6) | 119 |
| N3—H3A⋯Br2 | 0.75 | 2.74 | 3.480 (5) | 170 |
Symmetry codes: (i) 
; (ii) 
.
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