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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
C13—H13⋯Cg1i	1.00	2.78	3.671 (3)	148
C20—H20⋯Cg4ii	1.00	2.82	3.702 (3)	148

Symmetry codes: (i) ; (ii) . Cg1 and Cg4 are the centroids of the C4–C9 and C14–C19 rings, respectively.