Table 1. Hydrogen-bond geometry (Å, °) for 1 .
| D—H⋯A | D—H | H⋯A | D⋯A | D—H⋯A |
|---|---|---|---|---|
| N1—H1⋯Br1i | 0.86 (4) | 2.50 (4) | 3.305 (3) | 156 (3) |
| C5—H5⋯Br1ii | 0.95 | 2.92 | 3.790 (3) | 153 |
Symmetry codes: (i) 
; (ii) 
.
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