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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N1—H1⋯N3i	0.89 (2)	2.10 (2)	2.963 (2)	163 (2)

Symmetry code: (i) .