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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N2—H2A⋯N5ii	0.85 (2)	2.41 (3)	3.184 (5)	151 (4)
N2—H2B⋯N8iii	0.88 (2)	2.13 (2)	2.994 (5)	166 (4)

Symmetry codes: (ii) ; (iii) .