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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N1A—H1AA⋯O2A	0.84 (2)	2.12 (2)	2.888 (2)	152 (3)
N1A—H1AB⋯Cl1B i	0.87 (2)	2.56 (2)	3.3644 (15)	153 (2)
N2A—H2AA⋯Cl1A	0.87 (2)	2.51 (2)	3.3281 (15)	155 (2)
N2A—H2AB⋯Cl2A ii	0.85 (2)	2.51 (2)	3.3404 (15)	164 (2)
N1B—H1BA⋯O2B	0.84 (2)	2.17 (2)	2.911 (2)	147 (2)
N1B—H1BB⋯Cl1A	0.88 (2)	2.51 (2)	3.3682 (16)	167 (2)
N2B—H2BA⋯Cl1B	0.85 (2)	2.57 (2)	3.3085 (15)	146 (2)
N2B—H2BB⋯Cl2B iii	0.85 (2)	2.48 (2)	3.3107 (15)	165 (2)

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