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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N1—H1A⋯Cl1i	0.89	2.30	3.1777 (2)	171
N1—H1B⋯Cl1	0.89	2.65	3.2594 (2)	126
N1—H1B⋯Cl2	0.89	2.49	3.2631 (2)	145
C1—H1C⋯Cl2ii	0.97	2.82	3.7065 (2)	153

Symmetry codes: (i) -x+2, y, -z+{\script{3\over 2}}; (ii) -x+1, -y+1, -z+1.