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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
C3—H3⋯O7	0.93	2.50	2.815 (3)	100
O1W—H2W⋯O7i	0.83 (1)	2.11 (1)	2.911 (2)	165 (2)
O2—H2A⋯O9ii	0.82	1.86	2.661 (2)	167
O1W—H1W⋯O5iii	0.82 (1)	2.09 (2)	2.816 (2)	147 (2)

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