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Figure 2
N1—H1⋯O1 hydrogen-bonded chains (short-dashed lines) in (I) , showing the stacking relationship in each chain. Molecules along the chain are related by a unit-cell translation. Long-dashed lines show intermolecular Br1⋯Br2 interactions that link up the hydrogen-bonded chains. [Symmetry codes: (i) −1 + x, y, z; (ii) − x, 1 − y, − + z.] |


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