Acta Cryst. (2014). E70, o555
[ doi:10.1107/S160053681400796X ]
Abstract: In the title compound, C10H5BrO3, a brominated 3-formylchromone derivative, the non-H atoms are essentially coplanar (r.m.s. deviation = 0.0420 Å), with the largest deviation from its mean plane [0.109 (2) Å] being found for the ring-bound carbonyl O atom. In the crystal, molecules are linked through halogen bonds [BrO = 3.191 (2) Å, C-BrO = 167.32 (10)° and C=OBr = 168.4 (2)°] along . Molecules are assembled into layers parallel to (101) via - stacking interactions along the b axis [shortest centroid-centroid distance between the pyran and benzene rings = 3.495 (2) Å].
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