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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N3—H3A⋯N1i	0.89 (1)	2.32 (1)	3.203 (2)	169 (2)
N3—H3B⋯N3ii	0.91 (1)	2.48 (1)	3.384 (2)	175 (2)

Symmetry codes: (i) ; (ii) .