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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N4—H1N4⋯Cl1i	0.730 (19)	2.47 (2)	3.1689 (17)	161 (2)
O2—H1O2⋯Cl1	0.84 (3)	2.20 (3)	3.0062 (14)	161 (2)
N7—H1N7⋯Cl2ii	0.87 (2)	2.34 (2)	3.1488 (16)	153.9 (17)
N3—H1N3⋯Cl1i	0.76 (2)	2.50 (2)	3.2015 (16)	154 (2)
O1—H1O1⋯Cl2	0.79 (3)	2.20 (3)	2.9396 (16)	157 (2)
N8—H1N8⋯Cl2ii	0.85 (2)	2.349 (19)	3.1567 (19)	159 (2)

Symmetry codes: (i) ; (ii) .