Table 1. Geometry of N—H⋯π inter­actions (Å, °).

D	H	Centroid	N—H	H⋯Cg	D⋯Cg	N—H⋯Cg
N1	H1N	Cg4	0.86 (2)	2.534 (17)	3.2190 (12)	137.4 (14)
N2	H2N	Cg3	0.86 (2)	2.591 (17)	3.2425 (12)	133.7 (13)
N21	H21N	Cg1	0.88 (2)	2.523 (16)	3.1925 (12)	133.9 (12)
N22	H22N	Cg2	0.86 (2)	2.610 (17)	3.2440 (12)	131.3 (13)

Cg1, Cg2, Cg3 and Cg4 are the centroids of the N1/C1–C4, N2/C5–C8, N21/C21—C24 and N22/C25–C28 rings, respectively.