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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O1—H1⋯O4i	0.84 (1)	1.96 (1)	2.8029 (15)	178 (2)
O1W—H1WA⋯O2	0.84 (2)	1.86 (2)	2.6934 (17)	172 (2)
O4—H4A⋯O1Wii	0.83 (1)	1.89 (2)	2.7004 (17)	167 (2)
O4—H4B⋯O3i	0.84 (1)	1.84 (2)	2.6706 (16)	175 (2)

Symmetry codes: (i) ; (ii) .