Li-Li Kong

Aqua­chloridobis(1,10-phenanthroline-κ2N,N′)zinc(II) chloride N,N-dimethyl­formamide solvate

The Zn atom in the title salt, [ZnCl(C12H8N2)2(H2O)]Cl·C3H7NO, is chelated by two phenanthroline molecules and is bonded to one chloride ion and one water molecule, resulting in a ZnN4ClO octahedral coordination environment with the Cl and O atoms in a cis conformation. The cations and anions are linked by O—H⋯Cl hydrogen bonds across a center of inversion, forming a hydrogen-bonded dimeric association. The dimethylformamide solvent molecule is disordered over two orientations in a 0.56 (1):0.44 (1) ratio.

2,2′-[p-Phenyl­enebis(methyl­idene­aza­ne­di­yl)]dipyridinium bis­(hydrogensulfate) dihydrate

The cation of the title salt, C18H20N4 2+·2HSO4 −·2H2O, lies on a center of inversion with the mid-point directly in the middle of the p-phenylene ring. Within the hydrogensulfate ion, the S—O(H) bond is the longest of the S—O bonds. The dihedral angle between the central and terminal ring of the cation is 78.6 (2)°. In the crystal, the cation, anion and water molecule interact by O—H⋯O and N—H⋯O hydrogen bonds, generating a three-dimensional network.

Aqua(4-hydroxy­benzoato-κO)(4-hydroxy­benzoato-κ2O,O′)(1,10-phenanthroline-κ2N,N′)zinc(II) monohydrate

The Zn atom in the title compound, [Zn(C7H5O3)2(C12H8N2)(H2O)]·H2O, exists in a distorted cis-ZnN2O4 octahedral coordination geometry. One of the 4-hydroxybenzoate anions chelates in a bidentate manner whereas the other is monodentate. The complex molecules are linked through the uncoordinated water molecules into a hydrogen-bonded sheet structure.

Poly[[di-μ3-acetato-di-μ2-aqua-diaqua-di-μ3-hydroxo-tricopper(II)] naphthalene-1,5-disulfonate]

The crystal structure of the title complex, {[Cu 3 (C 2 H 3 O 2 ) 2 -(OH) 2 (H 2 O) 4 ](C 10 H 6 O 6 S 2 )} n , is built of infinite polymeric cationic {[Cu 3 (C 2 H 3 O 2 ) 2 (H 2 O) 4 (OH) 2 ] 2+ } n chains stretching along the a axis, with naphthalene-1,5-disulfonate (1,5-nds) anions in between. One independent Cu II cation and the 1,5-nds anion occupy special positions on crystallographic inversion centres. Each Cu II cation has an octahedral coordination environment formed by two carboxyl O atoms, two hydroxo O atoms and two water molecules. The carboxylate and hydroxo groups perform a bridging function, linking adjacent Cu atoms in the chain, with a shortest Cu···Cu distance of 2.990 (3) A. The chains are further linked into a three-dimensional supramolecular framework via hydrogen-bonding interactions involving the sulfonate groups of the 1,5-nds dianions.