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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
C11—H11C⋯O2i	0.96	2.66	3.607 (2)	171
C8—H8⋯O1ii	0.93	2.50	3.419 (3)	171

Symmetry codes: (i) ; (ii) .