Acta Crystallographica Section E: Crystallographic Communications (Dec 2015)

Crystal structure of 4,4′-dibromo-2′,5′-dimethoxy-[1,1′-biphenyl]-2,5-dione (BrHBQBr)

  • Joseph E. Meany,
  • Steven P. Kelley,
  • Robert M. Metzger,
  • Robin D. Rogers,
  • Stephen A. Woski

DOI
https://doi.org/10.1107/S2056989015020472
Journal volume & issue
Vol. 71, no. 12
pp. 1454 – 1456

Abstract

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In the title compound, C14H10Br2O4, the dihedral angle between the aromatic rings is 67.29 (19)°. Both methoxy-group C atoms lie close to the plane of their attached ring [deviations = −0.130 (4) and 0.005 (5) Å]. In the crystal, molecules pack in a centrosymmetric fashion and interact via a mixture of weak π–π stacking interactions [centroid–centoid separations = 4.044 (2) and 4.063 (3) Å], weak C—H...O hydrogen bonding, and Br...Br halogen bonding. This induces a geometry quite different than that predicted by theory.

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