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

Cg1 is the centroid of the C10–C15 ring.

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
C12—H12⋯O1i	0.93	2.71	3.400 (3)	132
C13—H13⋯N2ii	0.93	2.73	3.654 (3)	170
C20—H20⋯N2iii	0.93	2.61	3.522 (2)	166
C6—H6⋯Cg1iv	0.93	2.76	3.549 (2)	143

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