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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N1—H1N1⋯N3i	0.94	2.04	2.9787 (19)	174
C8—H8A⋯O1ii	0.97	2.52	3.147 (2)	123
C11—H11B⋯O1iii	0.97	2.47	3.416 (2)	165

Symmetry codes: (i) ; (ii) ; (iii) .