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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
C8A—H8AB⋯O3B	0.97	2.55	3.322 (3)	137
C8C—H8CB⋯O3Ai	0.97	2.55	3.212 (3)	126
C11A—H11A⋯Cg1B	0.93	3.46	4.036 (4)	123
C11B—H11B⋯Cg1A	0.93	3.10	3.917 (4)	137

Symmetry code: (i) . Cg1A and Cg1B are the centroids of the C1A–C6A and C1B–C6B benzene rings, respectively.