Crystal Structure Of 6,6,12,12-Tetra­Chloro­Tri­Cyclo­[8.2.0.04,7]Dodecane-5,11-Dione

Abstract

The asymmetric unit contains two independent mol­ecules, each consisting of an eight-membered ring with two four-membered rings fused on either side., The asymmetric unit of the title compound, C12H12Cl4O2, contains two crystallographically independent mol­ecules with almost identical conformations (r.m.s. overlay fit for the non-hydrogen atoms = 0.059 Å). In each mol­ecule, the central eight-membered ring has a distorted boat configuration, and two non-planar four-membered rings are fused on either side of the eight-membered ring. A weak C—H⋯O hydrogen bond links the two independent mol­ecules. In the crystal, weak C—H⋯O hydrogen bonds link the mol­ecules into a two-dimensional network parallel to (001).