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

Cg1 is the centroid of the C1–C6 benzene ring.

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
C12—H12⋯N1	0.93	2.37	2.980 (4)	123
C20—H20⋯Cg1i	0.93	2.86	3.717 (3)	154

Symmetry code: (i) .