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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O5—H5WA⋯O2ii	0.84 (1)	1.88 (1)	2.711 (3)	173 (5)
O5—H5WB⋯O4i	0.83 (1)	1.76 (1)	2.582 (3)	172 (5)
O6—H6WA⋯O3iii	0.84 (1)	2.60 (6)	3.062 (4)	116 (5)
O6—H6WB⋯O1iv	0.84 (1)	2.22 (4)	2.914 (4)	140 (5)

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