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
C6—H6⋯O3i	0.95	2.53	3.238 (4)	131
C11—H11A⋯O3ii	0.98	2.58	3.321 (4)	132
C14—H14⋯Cg iii	0.95	2.70	3.495 (4)	142

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