organic compounds
In the title compound, C26H28N6O6, the dihedral angle between the two five-membered rings is 73.1 (2); that between the two phenyl rings is 60.1 (1)°.
organic compounds
The title compound, C18H19IN4O6, is a glycoluril derivative which contains four fused rings. An iodobenzene ring is fused to a seven-membered ring linked to two of the N atoms from the separate rings of the glycoluril system. The structure is stabilized by intermolecular hydrogen bonds and π–π-stacking interactions.
organic compounds
In the title compound (systematic name: diethyl 4,8-dioxo-2,6-di-p-tolyl-1,3,5,7-tetrahydro-2,3a,4a,6,7a,8a-hexaazacyclopenta[def]fluorene-8b,8c-dicarboxylate), C28H32N6O6, the dihedral angles between the two fused five-membered rings in the glycoluril unit and between the two terminal benzene rings are 71.8 (2) and 88.5 (1)°, respectively.