Table 2. Hydrogen-bond geometry (Å, °) for (II) .
| D—H⋯A | D—H | H⋯A | D⋯A | D—H⋯A |
|---|---|---|---|---|
| N1—H1⋯O1 | 0.88 | 1.93 | 2.644 (3) | 138 |
| N2—H2⋯Br1i | 0.88 | 2.97 | 3.692 (3) | 141 |
| C13—H13⋯O1ii | 0.95 | 2.53 | 3.340 (4) | 144 |
Symmetry codes: (i) 
; (ii) 
.
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