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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N1—H01⋯O1i	0.88 (3)	2.02 (3)	2.8438 (14)	157 (3)
N2—H02⋯N3ii	0.85 (3)	2.15 (3)	2.9736 (15)	162 (3)

Symmetry codes: (i) x+1, y, z; (ii) x, y-1, z.