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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N1—H1⋯Cl7	0.91	2.43	3.279 (9)	155
N2—H2⋯Cl5	0.91	2.46	3.328 (9)	161
N3—H3⋯Cl2i	0.91	2.45	3.295 (9)	155
N4—H4⋯Cl1ii	0.91	2.49	3.352 (9)	158

Symmetry codes: (i) ; (ii) .