Abstract
In the title compound, C36H31ClN2O4Se, the four-membered beta-lactam ring is fused to a pyrrolidine ring. The central five-membered ring of the fused tricyclic system exhibits an envelope conformation with the N atom as the flap, while the other five-membered ring exhibits a twist conformation. The chlorophenyl ring is almost perpendicular to the pyrrolidine ring, making a dihedral angle of 73.45 (1)degrees. The crystal structure is stabilized by weak intermolecular C-H center dot center dot center dot O interactions and the packing is further enhanced by C-H center dot center dot center dot N interactions and pi-pi interactions between benzene rings of tetralone groups in molecules related by an inversion center, with a centroid-centroid separation of 3.8923 (2) angstrom.