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

Cg is the centroid of the C2–C7 benzene ring.

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
C9—H9C⋯Cgi	0.98	2.73	3.663 (2)	159

Symmetry code: (i) .