Table 3. Hydrogen-bond geometry (Å, °).

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O3—H3⋯O1i	0.88 (3)	1.93 (3)	2.7621 (17)	158 (2)
N1—H1⋯O1ii	0.85 (2)	2.13 (2)	2.9769 (18)	175.7 (19)

Symmetry codes: (i) ; (ii) .