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In the title compound, (NH4)[ZnCl3(C6H12N4)]·1.5H2O, the ZnII atom is in a tetra­hedral environment, coordinated by one N atom of the hexa­methyl­enetetra­mine ligand and by three Cl atoms. The charge of the hexa­methyl­enetetra­mine­trichloro­zincate(II) anion is counter-balanced by an ammonium cation. Two water mol­ecules, one of which shows disorder and is only partly occupied, are also present. The structure is stabilized by weak inter­molecular O—H⋯N, N—H⋯O and N—H⋯N hydrogen bonds. [ABSTRACT FROM AUTHOR]

Both carboxyl­ate groups chelate to the Cd atom in the title compound, [Cd(C9H7O3)2(C6H12N4)2(H2O)]·3H2O. The four O atoms involved in chelation and one water mol­ecule form a penta­gonal plane around the Cd atom, while the N atoms of the hexamethylenetetra­mine ligands occupy the axial sites of the penta­gonal bipyramid. Hydrogen bonds link the mol­ecules of the complex with the solvent water mol­ecules to form a three-dimensional network. [ABSTRACT FROM AUTHOR]

In the title compound, [Cu(C12H8N2)(C7H4SO5)(H2O)]·C3H7NO, the CuII atom has a square-pyramidal coordination geometry formed by three O atom and two N atoms. The 1,2-di-4-pyridylethyl­ene ligands function as μ2-bridging ligands to form a zigzag chain. The 2-sulfonatobenzoate ligands protrude on alternate sides of the chain. Inter­molecular O—H⋯O hydrogen bonds link the chains into a two-dimensional network structure. [ABSTRACT FROM AUTHOR]

In the polymeric title compound, [Cu(im)Cl(phen)]n, where im is the imidazolate anion (C3H3N2) and phen is 1,10-phenanthroline (C12H8N2), each CuII ion is five-coordinated by four basal N atoms (two from two different im anions and two from one phen ligand) and one axial Cl atom, in a distorted square-pyramidal coordination geometry. Moreover, each im anion bridges two identical {CuCl(phen)}+ cations through its two N atoms, resulting in a one-dimensional zigzag chain along the crystallographic a axis. In addition, pairs of adjacent chains are staggered by π-π interactions, generating a two-dimensional layer, and neighbouring layers are further linked by two different kinds of C-H…Cl interactions, producing a three-dimensional network. [ABSTRACT FROM AUTHOR]

The title mol­ecule, C18H18O8, has C2 molecular symmetry. In the crystal structure, each mol­ecule is connected to four neighbours via intermolecular O—H·O hydrogen bonds to form a two-dimensional network parallel to (100). [ABSTRACT FROM AUTHOR]

In the title compound, [Ni(C14H8O5)(C10H8N2)] n, the NiII atom is coordinated by four O atoms of two 4,4′-oxydibenzoate (oba) dianions and two N atoms of a chelate 2,2′-bipyridine ligand to furnish a distorted octahedral coordination environment. The V-shaped oba dianion acts as a bridge between two Ni atoms to form a zigzag chain coordination polymer. [ABSTRACT FROM AUTHOR]

In the title compound, [Cu(C8H3NO6)(C10H8N2)] n, the Cu atom exists in a four-coordinate environment defined by two carboxyl O atoms belonging to two 5-nitro­isophthalate dianions and two N atoms from a 2,2′-bipyridine molecule. The 5-nitro­isophthalate dianion acts as a bridge between two Cu atoms in a tris-monodentate coordination mode, resulting in a zigzag coordination polymer. [ABSTRACT FROM AUTHOR]

In the title complex, C8H12N2·2C6H5NO3, one 2,3,5,6-tetra­methyl­pyrazine and two p-nitro­phenol mol­ecules form a centrosymmetric unit. Intermolecular O—H⋯N and weak C—H⋯O hydrogen bonds are observed in the structure, leading to the formation of a two-dimensional network. [ABSTRACT FROM AUTHOR]