Crystal structure of N,N′-bis[2-((benzyl){[5-(di­methyl­amino)naph­tha­len-1-yl]sulfonyl}amino)ethyl]naphthalene-1,8:4,5-tetracarboximide 1,2-di­chloro­benzene tris­olvate

In the structure of the title compound, cooperative C—H⋯O=C, C—H⋯π and offset π–π inter­actions generate supra­molecular nanotubes which accommodate the 2,3-di­chloro­benzene solvent mol­ecules.
The asymmetric unit of the title compound, C56H50N6O8S2·3C6H4Cl2, contains two half-mol­ecules of the parent, A and B, which both have crystallographic inversion symmetry, together with three 2,3-di­chloro­benzene mol­ecules of solvation. Mol­ecules A and B are conformationally similar, with dihedral angles between the central naphthalenedi­imide ring and the peripheral naphthalene and benzyl rings of 2.43 (7), 81.87 (7)° (A) and 3.95 (7), 84.88 (7)° (B), respectively. The conformations are stabilized by the presence of intra­molecular π–π inter­actions between the naphthalene ring and the six-membered di­imide ring of the central naphthalenedi­imide moiety, with ring centroid-to-centroid distances of 3.5795 (8) Å (A) and 3.5640 (8) Å (B). In the crystal, C—H⋯O hydrogen bonds link the mol­ecules into infinite supra­molecular chains along the c axis. These chains are inter­connected through C—H⋯π and offset π–π inter­actions, generating supra­molecular nanotubes which are filled by 1,2-di­chloro­benzene mol­ecules.