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

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—H...O hydrogen bonds and π–π 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 Br...Br [3.4605 (8) Å] contact also stabilizes the crystal structure. [ABSTRACT FROM AUTHOR]