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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O3—H3⋯O4i	0.85 (5)	1.95 (5)	2.781 (3)	164 (3)
O4—H4⋯O2i	0.85 (5)	2.15 (5)	2.910 (3)	148 (5)
O4—H4⋯O3i	0.85 (5)	2.41 (6)	3.086 (4)	136 (4)

Symmetry code: (i) .