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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
C6—H6⋯O7i	0.93	2.58	3.26 (3)	129
C16—H16A⋯O8ii	0.97	2.46	3.41 (3)	168
C20—H20C⋯O2iii	0.96	2.54	3.139 (6)	121

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