metal-organic compounds
Open access
In the title compound, [ZnCl2(C11H9N)2], the Zn2+ cation lies on a twofold axis and is coordinated by two Cl− anions and the N atoms of two 2-phenylpyridine ligands, forming a ZnN2Cl2 polyhedron with a slightly distorted tetrahedral coordination geometry. The dihedral angle between the phenyl ring and the metal-bound pyridine ring is 50.3 (4)° for each 2-phenylpyridine ligand. This arranges the phenyl ring from one ligand in the complex above the pyridine ring of the other resulting in an intramolecular π–π interaction, with a centroid–centroid distance of 3.6796 (17) Å. Weak C—HCl hydrogen bonds stabilize the crystal packing, linking molecules into chains along the c axis.
metal-organic compounds
Open access
The structure of the title compound, [Co2(C19H11F2O2)4(C5H5N)2(H2O)2]·2C4H10O, comprises two CoII atoms in a distorted square pyramidal coordination environment, straddling a crystallographic inversion center with a CoCo separation of 3.1923 (15) Å. Each Co2+ cation is coordinated by three O atoms of three 4,4′′-difluoro-1,1′:3′,1′′-terphenyl-2′-carboxylate ligands, one water O atom and one pyridine N atom, forming a CoO4N polyhedron. Strong intramolecular O—HO hydrogen bonds are observed between terminal metal-bound carboxylate groups and water O atoms.
organic compounds
Open access
In the title molecule, C21H18O4, the C=C bond of the central enone group adopts a trans conformation. The dihedral angle formed by the naphthalene ring system and the benzene ring is 2.97 (11)°. The hydroxy group is involved in an intramolecular O—HO hydrogen bond. In the crystal, weak C—HO hydrogen bonds link the molecules into chains along [001].