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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O1—H1⋯O3i	0.84	2.04	2.776 (2)	147
O3—H3⋯O2ii	0.84	1.85	2.6810 (17)	168

Symmetry codes: (i) ; (ii) .