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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O1W—H1WA⋯O3Wi	0.85	1.96	2.811 (4)	180
O1W—H1WB⋯O2W	0.840 (18)	2.05 (2)	2.870 (3)	166 (4)
O2W—H2WA⋯O3	0.840 (18)	1.904 (19)	2.741 (3)	174 (4)
O2W—H2WB⋯O4ii	0.844 (18)	1.95 (2)	2.751 (3)	158 (4)
O3W—H3WA⋯O1W	0.85	1.90	2.754 (4)	179
O3W—H3WB⋯O3iii	0.85	1.94	2.793 (3)	179
N2—H2N⋯O2Wiv	0.866 (18)	2.16 (2)	2.985 (3)	158 (3)
N3—H3N⋯O2v	0.82 (4)	1.86 (4)	2.683 (3)	176 (4)

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