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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N2—H2⋯O2	0.86	2.00	2.6203 (19)	128
N2—H2⋯O2i	0.86	2.26	3.0114 (18)	147

Symmetry code: (i) .