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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O1W—H1A⋯O1i	0.83 (2)	1.92 (2)	2.745 (5)	171 (5)
O1W—H1B⋯O5ii	0.83 (2)	1.76 (2)	2.571 (5)	165 (5)
O7—H7⋯O4iii	0.82 (2)	1.86 (3)	2.639 (5)	158 (6)
O8—H8⋯O4iv	0.82 (2)	1.88 (3)	2.682 (5)	163 (6)

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