(E)-1-(4-Fluoro-2-hy-droxy-phen-yl)-3-(2,3,4-tri-meth-oxy-phen-yl)prop-2-en-1-one

Abstract

In the title mol-ecule, C₁₈H₁₇FO₅, the conformation about the C=C bond of the central enone group is trans. The dihedral angle between the benzene rings is 13.08 (3)°. The hy-droxy group attached to the benzene ring is involved in an intra-molecular O-H⋯O hydrogen bond. In the crystal, weak C-H⋯O hydrogen bonds link the mol-ecules into chains along [001].

Keywords: C—H⋯O hydrogen bonds; chalcone; crystal structure; dihedral angle.

Figure 1

The mol­ecular structure of the title compound, showing the atom-labelling scheme with displacement ellipsoids drawn at the 30% probability level. The intra­molecular hydrogen bond is shown as a dashed line.

Figure 2

Part of the crystal structure with the intra­molecular O—H⋯O hydrogen bond and weak C—H⋯O hydrogen bonds shown as dashed lines. For the sake of clarity, only the H atoms involved in hydrogen bonds are shown [symmetry codes: (i) x, −y +  , z −  ; (ii) x, −y +  , z +  ].