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Acta Cryst. (2013). E69, o542
[ doi:10.1107/S1600536813006843 ]


D. Koh

Abstract: In the title molecule, C22H20O5, the C=C bond of the central enone group adopts an E conformation. The dihedral angle formed by the benzene ring and the naphthalene ring system is 12.6 (4)°. The hydroxy group attached to the naphthalene ring is involved in an intramolecular O-H...O hydrogen bond. In the crystal, weak C-H...O hydrogen bonds link the molecules into chains along [010]. In addition, [pi]-[pi] stacking interactions are present, with centroid-centroid distances of 3.6648 (15) and 3.8661 (15) Å between the benzene and two naphthalene rings.

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