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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O1—HW1⋯O3iv	0.81 (2)	1.91 (2)	2.7077 (17)	167 (2)
O4—HW2⋯O3i	0.80 (3)	2.03 (3)	2.8372 (18)	176 (3)

Symmetry codes: (i) ; (iv) .