Acta Cryst. (2007). E63, o2826  [ doi:10.1107/S1600536807021472 ]

3-Dibromoacetyl-2H-chromen-2-one

D. Chopra, K. N. Venugopala, G. K. Rao and T. N. Guru Row

Abstract: The molecular structure of the title compound, C₁₁H₆Br₂O₃, contains a planar coumarin ring system which makes a dihedral angle of 18.5 (1)° with the bromoacetyl group. The structure is stabilized by intermolecular C-HO hydrogen bonds and - aromatic stacking interactions, with centroid-centroid distances of 3.567 (2) (symmetry code: -x, -y, -z) and 3.642 (2) Å (-x + 1, -y, -z). A short BrBr [3.4605 (8) Å] contact also stabilizes the crystal structure.

Online 5 May 2007

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