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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N1—H1⋯O1i	0.86	2.10	2.910 (4)	157
N1—H2⋯Cl1ii	0.86	2.40	3.194 (3)	154
N2—H3⋯Cl1ii	0.86	2.53	3.315 (3)	153
N3—H4⋯Cl1iii	0.86	2.54	3.363 (3)	161
N3—H5⋯Cl1iv	0.86	2.53	3.311 (3)	151
O3—H6⋯Cl1v	0.81	2.39	3.163 (2)	162
O3—H7⋯Cl2vi	0.79	2.28	3.059 (2)	167
O4—H8⋯Cl1	0.76	2.45	3.208 (2)	178
O4—H9⋯Cl2	0.80	2.41	3.127 (2)	150

Symmetry codes: (i) ; (ii) ; (iii) ; (iv) ; (v) ; (vi) .