Synthesis and Comparative Analysis of Molecular and Supramolecular Structures of 4,8-Disubstituted 1,5-Dichloro-2,6-dioxotricyclo[5.1.0.0~3,5]octanes

摘要

A series of 4,8-disubstituted 1,5-dichloro-2,6-dioxotricyclo-[5.1.0.0~3,5]octanes,synthesized by various methods,were studied by X-ray single crystal diffraction.The conformation(syn/anti)of the molecules does not depend on the method of preparation and nature of substituents.All the compounds crystallize in centrosymmetric space groups with half of the molecules in the asymmetric part of the unit cell.The main influence which the substituents render is on the packingof molecules in crystals and on the types of intermolecular interactions and supramolecular structures.