organic compounds
4,4'-Diiodobiphenyl, C12H8I2, crystallizes as a homologous isomorph of the high-temperature form of p-diiodobenzene. The molecule is planar and lies on a center of symmetry. Each I atom is in contact with five others at distances between 4.0 and 4.5 Å.
organic compounds
2,3,5,6-Tetrachloro-1,4-dicyanobenzene forms a 1:1 complex with anthracene, C8N2Cl4·C14H10. The two molecules, which both lie on inversion centers, alternate in π stacks. There are no unusual intermolecular interactions.
organic compounds
2,6-Dibromo-4-chlorobenzonitrile, C7H2Br2ClN, forms layers in the crystal structure, with BrN contacts of 3.049 (2) Å the strongest intermolecular interactions. The crystal structure is isomorphous with 2,4,6-tribromobenzonitrile.
organic compounds
In the crystal structure of the title compound, 2,4,5,6-tetrachloro-1,3-dicyanobenzene–pyrene (1/1), C8Cl4N2·C16H10, the dicyanobenzene molecules located on twofold rotation axes of symmetry and the pyrene molecules on inversion centers. The primary intermolecular interaction is in an alternate π-stacked arrangement. There are no unusual interactions between the stacks.