title: Structure of dibenzofuran-d8, C12D8O, at 173 K.
abstract: Crystalline dibenzofuran-d8 has been found to exhibit disorder of the type described previously for dibenzofuran. The disordered molecules are related to the ordered molecules by a 180 degrees rotation about an axis passing through the molecular center of mass and perpendicular to the furan ring. In the present structure 11(2)% of the molecules were found to adopt this alternate orientation. The molecules are bisected by a mirror plane normal to the furan ring and containing the O atom. The average bond length in the benzenoid ring is 1.392 (10) A. The furan ring and the benzenoid ring are separately planar, but form a dihedral angle of 1.45 (9) degrees with each other.
authors.affiliation: Department of Chemistry, Ohio State University, Columbus 43210.
authors.forename: L J
authors.initials: LJ
authors.lastname: Fitzgerald
authors.forename: J C
authors.initials: JC
authors.lastname: Gallucci
authors.forename: R E
authors.initials: RE
authors.lastname: Gerkin
mesh_terms: D001572:Benzofurans / Q000737:chemistry*; D055598:Chemical Phenomena; D002627:Chemistry, Physical; D003460:Crystallization; D015394:Molecular Structure; D014961:X-Ray Diffraction
chemical_list: D001572:Benzofurans; C023614:dibenzofuran