organic compounds
The title compound, C24H20O10, is centrosymmetric about the central C=C bond, indicating that the molecule adopts a trans configuration and that the aromatic rings are parallel to each other. The crystal structure is stabilized by intermolecular C—HO interactions.
organic compounds
The title compound, C26H30O10, is the meso isomer of a 2,3-disubstituted succinic acid derivative and has inversion symmetry. The crystal structure is stabilized by intermolecular C—Hπ and π–π stacking interactions.
organic compounds
The molecule of the title compound, C22H30O8, contains a crystallographic inversion centre located at the middle of the benzene ring.
organic compounds
The title compound, C20H32N6O6, is a glycoluril derivative. The molecule is built up from four fused rings, namely two nearly planar imidazole five-membered rings and two non-planar triazine six-membered rings. In the five-membered imidazole rings, the N—Ccarbonyl bond distances are much shorter than the other N—C distances, indicating π–π conjugation within the nearly planar ring. Both six-membered rings display chair conformations.