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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N2—H2N⋯N5i	0.91	2.30	3.185 (2)	164
C11—H11⋯O1ii	0.93	2.60	3.300 (3)	133

Symmetry codes: (i) ; (ii) .