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	2.9111 (18)	157
N1—H2⋯Cl1ii	0.86	2.39	3.1897 (17)	155
N2—H3⋯Cl1ii	0.86	2.53	3.3184 (14)	153
N3—H4⋯Cl1iii	0.86	2.54	3.3633 (15)	161
N3—H5⋯Cl1iv	0.86	2.54	3.3232 (15)	151
O3—H6⋯Cl1v	0.80	2.39	3.1607 (12)	161
O3—H7⋯Cl2vi	0.79	2.27	3.0504 (12)	168
O4—H8⋯Cl1	0.75	2.45	3.2028 (13)	177
O4—H9⋯Cl2	0.80	2.40	3.1238 (12)	150

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