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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O2—H2⋯O1i	0.91 (3)	1.65 (3)	2.551 (2)	173 (2)

Symmetry code: (i) .