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
C5—H5⋯O2i	0.95	2.50	3.429 (2)	167
C21—H21B⋯O2ii	0.98	2.33	3.290 (2)	165
C19—H19⋯Cgii	0.95	2.59	3.392 (2)	142

Symmetry codes: (i) ; (ii) .