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

Cg1, Cg2 and Cg3 are the centroids of the N1/C7/N2/C1/C6, C1–C6 and C8–C13 rings, respectively.

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
C15—H15A⋯O2i	0.95	2.39	3.324 (2)	166
C21—H21A⋯Cg1ii	0.99	2.63	3.5183 (16)	149
C12—H12A⋯Cg2iii	0.95	2.96	3.5940 (16)	125
C19—H19A⋯Cg3iii	0.95	2.60	3.4770 (18)	153

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