Table 2. Hydrogen-bond geometry (Å, °).

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N3—H3B⋯O1i	0.86	2.02	2.875 (5)	175
N3—H3C⋯N2ii	0.86	2.61	3.205 (5)	128
C3—H3⋯O1iii	0.93	2.44	3.357 (5)	170

Symmetry codes: (i) ; (ii) ; (iii) .