Title of article :
Crystal structure of 4′-bromo-2,5-dihydroxy-2′,5′-dimethoxy-[1,1′-biphenyl]-3,4-dicarbonitrile
Author/Authors :
Meany, Joseph E. Department of Chemistry - The University of Alabama, USA , Kelley, Steven P. Department of Chemistry - The University of Alabama, USA , Rogersb, Robin D. Department of Chemistry - McGill University, Canada , Woskia, Stephen A. Department of Chemistry - The University of Alabama, USA
Abstract :
In the crystal of the title substituted hemibiquinone derivative, C16H11BrN2O4 or [BrHBQH2(CN)2], the substituted benzene rings are rotated about the central C—C bond, forming a dihedral angle of 53.59 (7)°. The ring systems interact through an intramolecular O—H⋯Omethoxy hydrogen bond, which induces a geometry quite different from those in previously reported hemibiquinone structures. In the crystal, the molecules associate through an intermolecular O—H⋯Nnitrile hydrogen bond, forming chains which extend along [100] and are interlinked through very weak C—H⋯N hydrogen bonds, giving a overall two-dimensional structure lying parallel to (010).
Keywords :
molecular rectifier , crystal structure , hemibiquinone
Journal title :
Acta Crystallographica Section E: Crystallographic Communications
