organic compounds
Open access
In the title compound, C16H14O4, there is an intramolecular O—HO hydrogen bond. The benzene rings are inclined to one another by 13.89 (9)°. The prop-2-en-1-one group is twisted slightly, the O=C—Car—Car (ar = aromatic) and C=C—C=O torsion angles being −10.4 (3) and −7.4 (3)°, respectively. In the crystal, molecules are linked by O—HO hydrogen bonds, forming chains along [100]. These chains are further linked by O—HO hydrogen bonds, forming corrugated sheets lying parallel to (010). There are C—Hπ interactions present within the sheets.
organic compounds
Open access
In the title compound, C16H14O4, the benzene rings are inclined to one another by 4.91 (7)°. The conformation about the C=O and C=C bonds is trans and cis, respectively. In the crystal, molecules are linked by O—HO hydrogen bonds, forming inversion dimers with an R22(14) ring motif. The dimers are linked via O—HO and C—HO hydrogen bonds, forming undulating two-dimensional networks lying parallel to (10-1). These networks are linked by further C—HO hydrogen bonds, forming a three-dimensional structure.
organic compounds
Open access
In the title compound, C20H22N2O2, the piperidine ring adopts a chair conformation. The phenyl rings are inclined to one another by 80.1 (1)° and make dihedral angles of 46.1 (1) and 40.2 (1)° with the mean plane of the piperidine ring. In the crystal, pairs of N—HO hydrogen bonds link the molecules into inversion dimers. C—HO interactions further link the molecules, forming a three-dimensional supramolecular network.