organic compounds
Open access
The title molecule, C23H20O3, is disordered with a 180° rotation about an axis normal to the length of the molecule, with the major and minor components in a 0.545 (5):0.455 (5) ratio. In the major component, the central benzene ring forms dihedral angles of 72.34 (3) and 69.46 (3)° with the dimethyl-substituted and methoxy-substituted benzene rings, respectively. Moreover, the central benzene ring forms dihedral angles of 50.86 (5) and 58.43 (4)° with the mean planes of the ketone groups. In the minor component, the corresponding dihedral angles between the benzene rings are 71.36 (4) and 67.94 (4)° and the dihedral angles between the benzene ring and the ketone groups are 56.44 (9) and 55.51 (8)°. In the crystal, C—HO interactions generate a C(9) chain along the a-axis direction.
organic compounds
Open access
In the title compound, C22H14S, the r.m.s. deviation from the mean plane of the four-fused-ring naphthothiophene unit is 0.056 Å. The dihedral angle between the naphthothiophene plane and the pendant phenyl ring is 67.24 (6)°. In the crystal, weak C—Hπ and π–π stacking [minimum centroid–centroid separation = 3.7466 (10) Å] interactions are observed, which together lead to (010) sheets.
organic compounds
Open access
The title compound C28H22O2, basically consists of three ring systems, viz. a central benzene ring, with a lateral napthalene group to which it subtends a dihedral angle of 66.56 (4)° and a tetrahydropyran ring exhibiting a half-chair conformation. The molecular structure is stabilized by a weak intramolecular C—HO interaction, while the crystal packing features weak C—Hπ contacts.