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

Cg1 is the centroid of the N3,C12–C15 pyridyl ring.

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N1—H1n⋯N3i	0.88 (2)	2.02 (2)	2.897 (3)	172 (2)
C8—H8⋯Cg1ii	0.95	2.92	3.701 (3)	141

Symmetry codes: (i) ; (ii) .