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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O1W—H2W⋯O2i	0.79 (3)	2.21 (4)	2.925 (4)	150 (5)
O1W—H1W⋯O5ii	0.79 (3)	2.05 (4)	2.813 (4)	161 (5)

Symmetry codes: (i) ; (ii) .