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

D—H⋯A	D—H	H⋯A	D⋯A	D—H⋯A
N1—H1⋯N2i	0.821 (19)	2.489 (19)	3.3054 (18)	173.5 (17)
C1—H1⋯Cg1ii	0.97	2.78	3.737 (16)	168
C9—H9⋯Cg2ii	0.97	2.73	3.689 (17)	170
C14—H14⋯Cg3iii	0.93	2.89	3.598 (2)	134

Symmetry codes: (i) ; (ii) ; (iii) . Cg1, Cg2, Cg3 are the centroids of the S1,C2,N2,C3,C8, C3–C8 and C11–C16 rings, respectively.