title: Crystal structure of 4'-bromo-2',5'-dimeth-oxy-2,5-dioxo-[1,1'-biphen-yl]-3,4-dicarbo-nitrile [BrHBQ(CN)2] benzene hemisolvate.
abstract: In the crystal of the title compound, C16H9BrN2O4·0.5C6H6, the mol-ecules stack in a centrosymmetric unit cell in a 2:1 stoichiometry with co-crystallized benzene solvent mol-ecules and inter-act via various weak inter-actions. This induces a geometry different from that predicted by theory, and is unique among the hemibi-quinones heretofore reported.
authors.affiliation: Department of Chemistry, The University of Alabama, Box 870336, Tuscaloosa, AL, 35487, USA.
authors.forename: Joseph E
authors.initials: JE
authors.lastname: Meany
authors.affiliation: Department of Chemistry, The University of Alabama, Box 870336, Tuscaloosa, AL, 35487, USA.
authors.forename: Deidra L
authors.initials: DL
authors.lastname: Gerlach
authors.affiliation: Department of Chemistry, The University of Alabama, Box 870336, Tuscaloosa, AL, 35487, USA.
authors.forename: Elizabeth T
authors.initials: ET
authors.lastname: Papish
authors.affiliation: Department of Chemistry, The University of Alabama, Box 870336, Tuscaloosa, AL, 35487, USA.
authors.forename: Stephen A
authors.initials: SA
authors.lastname: Woski
keywords: crystal structure; hemibi­quinone; mol­ecular rectifier