Acta Cryst. (2013). E69, o442 [ doi:10.1107/S1600536813000299 ]
Abstract: The title compound, C19H18O3, crystallizes with three molecules (A, B and C) in the asymmetric unit. The carbonyl O atom shows positional disorder over two sites in molecules A and B; the site-occupancy ratios are 0.76 (3):0.24 (3) and 0.86 (3):0.14 (3), respectively. The ethylene fragments in each molecule have an E conformation, while the C-O-C-C torsion angles indicate near planarity. The dihedral angles formed by the aromatic rings are 20.0 (1), 23.7 (1) and 16.1 (1)° for molecules A, B and C, respectively. Intramolecular C-HO hydrogen bonds occur in each molecule.
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