Table 2. Summary of short inter­atomic contacts (Å) in the title salt.

Contact	Distance	Symmetry operation
Br1⋯H3A (N3)	2.37	x, y, z
Br1⋯H3B (N3)	2.55	1 − x, −  + y,  − z
Br1⋯H14A (C14)	3.14	−x, 1 − y, 1 − z
Br1⋯H4A (C4)	2.96	x,  − y,  + z
Br1⋯H12A (C12)	3.02	x,  − y,  + z