In the title compound, C21H24O3, the enone unit is in the s–cis configuration. The dihedral angle between the benzene rings is 2.18 (4)°. In the crystal, molecules are linked by pairs of O—H⋯O intermolecular hydrogen bonds, forming inversion dimers. The crystal structure is also consolidated by C—H⋯π interactions.
In the title compound, C25H32O3, the asymmetric unit contains two crystallographically independent molecules: both enone groups adopt an s-cis configuration. In the crystal, O—H⋯O and C—H⋯O intermolecular interactions form bifurcated hydrogen bonds, which generate R
1
2(6) ring motifs. These intermolecular interactions link the molecules into one-dimensional chains along the [10] direction. The crystal structure is further stabilized by C—H⋯π interactions.
In the title compound, C21H24O3, intermolecular O—H⋯O and C—H⋯O interactions form bifurcated acceptor bonds, generating R
2
1(6) ring motifs. These ring motifs link the molecules into extended chains along [010]. The crystal structure is further stabilized by C—H⋯π interactions.
There are two molecules in the asymmetric unit of the title compound, C21H24O3, in which the dihedral angles between the aromatic rings are 6.4 (1) and 7.0 (1)°. The enone moiety of both molecules adopts an s–cis configuration. In the crystal, intermolecular O—H⋯O and C—H⋯O interactions to the same acceptor O atom generate R
2
1(6) ring motifs and further C—H⋯O interactions generate R
2
2(8) ring motifs. Topologically, the R
2
1(6) and R
2
2(8) ring motifs are arranged alternately, forming [001] chains of molecules. The crystal structure is further stabilized by C—H⋯π interactions.
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