Crystal structure and Hirshfeld surface analysis of (3aR,4S,7S,7aS)-4,5,6,7,8,8-hexa-chloro-2-{6-[(3aR,4R,7R,7aS)-4,5,6,7,8,8-hexa-chloro-1,3-dioxo-1,3,3a,4,7,7a-hexa-hydro-2H-4,7-methano-isoindol-2-yl]hex-yl}-3a,4,7,7a-tetra-hydro-1H-4,7-methano-iso-indole-1,3(2H)-dione.

The mol-ecule of the title compound, C(24)H(16)Cl(12)N(2)O(4), is generated by a crystallographic inversion centre at the midpoint of the central C-C bond. A kink in the mol-ecule is defined by a torsion angle of -169.86†(15)° about this central bond of the alkyl bridge. The pyrrolidine ring is essentially planar [max. deviation = 0.014†(1)†à ]. The cyclo-hexane ring has a boat conformation, while both cyclo-pentane rings adopt an envelope conformation. In the crystal structure, mol-ecules are linked by inter-molecular C-H⋯O, C-H⋯Cl and C-Cl⋯π inter-actions, and short inter-molecular Cl⋯O and Cl⋯Cl contacts, forming a three-dimensional network.