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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O1—H1W2⋯O2	0.85 (4)	2.04 (5)	2.885 (9)	176 (9)
O1—H1W1⋯Cl1	0.83 (4)	2.30 (4)	3.127 (7)	180 (9)
O2—H2W1⋯Cl1i	0.84 (4)	2.48 (4)	3.317 (7)	175 (6)
O2—H2W2⋯Cl2	0.84 (3)	2.33 (3)	3.165 (5)	173 (7)
O3—H3W1⋯Cl1ii	0.85 (6)	2.33 (6)	3.161 (5)	166 (6)
O3—H3W2⋯Cl2iii	0.84 (4)	2.27 (5)	3.095 (5)	170 (7)
O4—H4W1⋯O1	0.79 (5)	2.06 (5)	2.841 (8)	169 (5)
O4—H4W2⋯O3	0.81 (3)	2.00 (3)	2.795 (8)	168 (7)

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