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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N4—H4N⋯N4i	1.31 (1)	1.31 (1)	2.616 (2)	178 (3)
N2—H2N⋯Cl1	0.94 (2)	2.29 (2)	3.2263 (11)	176.4 (16)

Symmetry code: (i) .