cis-1,2,3,6-Tetrahydrophthalic anhydride at 173 K

Article abstract of DOI:10.1107/S0108270198012402

The title compound, C₈H₈O₁, (I), crystallizes with two nearly identical molecules in the asymmetric unit. Each molecule has a boat conformation and non-crystallographic mirror symmetry. The structure was determined in connection with a study of the possible chemical decomposition of the compound in different solvents and in contact with the atmosphere. A similar boat conformation was found in five of six structures retrieved from the Cambridge Structural Database which contain (I) as a moiety. The present structure exhibits nearly the same packing motif as the recently found monoclinic polymorph.