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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N2—H1N2⋯O2i	0.91 (2)	1.89 (2)	2.7778 (18)	165.7 (19)
O3—H1O3⋯N1ii	0.92 (2)	1.74 (2)	2.6663 (18)	176 (2)
C3—H3A⋯Cg1iii	0.94 (2)	2.77 (3)	2.73	147.6 (18)

Symmetry codes: (i) ; (ii) ; (iii) . Cg1 is the centroid of the C1–C6 benzene ring.