metal-organic compounds
The title complex, [Co(C10H6NO2)2(CH4O)2], is a neutral mononuclear complex containing a CoII ion in a six-coordinate environment. The CoII center, located on a crystallographic center of symmetry, displays a slightly distorted octahedral geometry, with two quinoline-8-carboxylate and two methanol ligands in trans configurations. The complex molecules are linked together by O—HO and C—HO hydrogen bonds between methanol molecules and carboxylate groups to form a three-dimensional framework.
metal-organic compounds
In the structure of the title complex, [Cu(N3)2(C14H15N3O2)]·H2O, the Cu atom exhibits a CuN5O coordination environment formed by five N atoms, three from the N,N-bis(2-pyridymethyl)glycine (bpg) ligand and two from azide anions, and one O atom belonging to bpg. The Cu—N distances range from 1.931 (3) to 1.960 (3) Å, with an average of 1.945 (3) Å, and the Cu—O distance is 1.900 (2) Å. The azide ligands are almost linear, with both N—N—N angles being 174.7 (4)°.
metal-organic compounds
The title complex, [Cu2(C16H10NO2)4(H2O)2], has a centrosymmetric wheel-shaped dinuclear structure in which two symmetry-related CuII centers are bridged by four carboxylate groups of distinct 2-phenylquinoline-4-carboxylate (phqc) ligands, the Cu—Cu separation being 2.6507 (12) Å. Each CuII center is five-coordinated by four O atoms of carboxylate groups in the basal plane and one O atom of a water molecule in the apical position. In addition, the dinuclear molecules are linked by intermolecular O—HN hydrogen bonds to form a one-dimensional supramolecular chain.
metal-organic compounds
The title complex, [HgBr2L] [L is 1,4-bis(ethylsulfanyl)butane, C4H9S], has a dinuclear structure in which one L ligand links two HgBr2 units. A C2 symmetry axis passes through the centre of the ligand L. The HgII centre adopts a slightly distorted trigonal planar geometry coordinated by two Br− anions and one S atom from L. When two weak Hg—Br interactions are considered, the dinuclear structure expands into a two-dimensional layer containing [HgBr2]n chains, with the HgII ion having a trigonal–bipyramidal geometry and the Br− anion acting as a μ2 linkage.
metal-organic compounds
The title complex, [Hg2Br4(C18H22S2)]n, has a chain structure. Two bridging Br atoms and two terminal Br atoms coordinate to two HgII atoms to form a (HgBr2)2 dimer, and the 1,4-bis(benzylsulfanyl)butane ligands bridge the (HgBr2)2 dimers to form a one-dimensional chain. The dimer and butane ligand are each located on inversion centers. HgII adopts a tetrahedral geometry formed by three Br and one S atoms.