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Figure 3 . A packing view (Mercury 2.3, Macrae et al. (2008)) of the unit cell, highlighting the layers formed by Br⋯N bonding in the crystal structure (Table 3). Some of the other weak interactions (Table 2) are shown, with contact atoms in ball mode; only H atoms involved in short contacts are included. Symmetry codes: (i) x, 1 + y,z (ii) x − 1,y,z (iii) 1 − x,1 − y,1 − z (iv) x − 1,1 + y,z. |