Table 3. π–π Interactions (Å,°).

I	J	CgI⋯CgJ	Dihedral angle	CgIPerp	CgJPerp	CgIOffset	CgJOffset
1	4ii	3.641 (2)	5.31 (10)	3.416 (2)	3.492 (2)	0.767 (2)	1.031 (2)
2	4ii	3.885 (2)	6.74 (11)	3.666 (2)	3.491 (2)	1.286 (2)	1.705 (2)

Symmetry code: (ii) . Notes: Cg1, Cg2 and Cg4 are the centroids of the C9/N10/C11–C14, C1–C4/C11/C12 and C18–C23 rings, respectively. CgI⋯CgJ is the distance between ring centroids. The dihedral angle is that between the planes of the rings I and J. CgI _Perp and CgJ _Perp are the perpendicular distances of CgI from ring J and of CgJ from ring I, respectively. CgI _Offset and CgJ _Offset are the distances between CgI and the perpendicular projection of CgJ on ring I, and between CgJ and the perpendicular projection of CgI on ring J, respectively.