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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
O2—H2⋯N2i	0.91 (2)	1.88 (2)	2.7894 (11)	175.0 (17)

Symmetry code: (i) .