Table 1. Hydrogen-bond geometry (Å, °).

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N3—H1⋯O3i	0.88 (1)	2.12 (1)	2.975 (2)	164 (2)
N3—H2⋯O2ii	0.87 (1)	2.12 (1)	2.978 (2)	168 (2)

Symmetry codes: (i) ; (ii) .