Table 2. Hydrogen-bond geometry (Å, °).

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N1—H1N1⋯O1ii	0.86 (2)	2.02 (2)	2.8766 (15)	177.3 (19)
N2—H1N2⋯O1iii	0.863 (19)	2.035 (19)	2.8949 (14)	174.2 (17)
C7—H7A⋯O1iii	0.96	2.38	3.3370 (17)	176

Symmetry codes: (ii) ; (iii) .