Crystal structure of N,N′-di­decyl­pyromellitic di­imide

The title compound, C(30)H(44)N(2)O(4) [systematic name: 2,6-di­decyl­pyrrolo­[3,4-f]iso­indole-1,3,5,7(2H,6H)-tetra­one], consists of a central pyromellitic di­imide moiety with terminal decyl groups at the N-atom positions. The centre of the mol­ecule lies on a crystallographic inversion centre so the asymmetric unit contains one half-mol­ecule. The mol­ecule exhibits a rod-shaped conformation, like other similar compounds of this type, the distance between the ends of terminal decyl groups being 32.45 Å. The packing is dominated by a lamellar arrangement of the mol­ecules, which is reinforced by C—H⋯O hydrogen bonds and C—O⋯π inter­actions, forming a classic herringbone structure. The mol­ecular structure is consistent with the theoretical calculations performed by density functional theory (DFT).