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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N1—H1B⋯Cl2	0.89	2.37	3.248 (6)	168
N1—H1A⋯Cl3i	0.89	2.37	3.196 (5)	154
N1—H1C⋯Cl3ii	0.89	2.55	3.353 (6)	151

Symmetry codes: (i) ; (ii) .