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In the title compound, [Ni(C2H8N2)(C6H16N2)(H2O)2]Cl2·-2H2O, the NiII ion, located on a twofold axis, is coordinated by four N atoms of the ethylenediamine and N,N,N',N''-tetramethylethylenediamine ligands and two water molecules in a distorted octahedral geometry. Hydrogen bonds between ethylenediamine, water molecules and chloride ions help to construct a three-dimensional supramolecular architecture. [ABSTRACT FROM AUTHOR]

In the title compound, [Ni(C14H16N2)2(H2O)2]Cl2·2[NiCl2(C12H8N2)2], the dication, whose Ni atom is chelated by a chiral ligand, lies about a pseudo-inversion site. The dication uses its coordinated water molecules to form hydrogen bonds to the chloride counterion as well as to a coordinated Cl atom of the neutral complex. The three Ni atoms exist in octahedral geometries. [ABSTRACT FROM AUTHOR]

In the title compound, [Ni(C6H14N2)(C6H16N2)(H2O)2]Cl2·2H2O, the cation lies about a twofold rotation axis. The octahedral complex cation is linked to the Cl− anions by hydrogen bonds to form a layer structure. [ABSTRACT FROM AUTHOR]

The title compound, C2H10N22+·2Cl−·2C12H8N2·4H2O, has an inversion centre located midway between the two C atoms of the ethyl­ene­diammonium cation. The 1,10-phenanthroline mol­ecules stack along the a axis, and are linked by π–π stacking inter­actions to form one-dimensional chains. These are bridged by ethyl­ene­diammonium cations, via hydrogen bonds, forming two-dimensional supra­molecular sheets parallel to the ac plane. Hydrogen bonds to chloride anions and water mol­ecules connect these two-dimensional sheets, resulting in the formation of a three-dimensional supra­molecular network. [ABSTRACT FROM AUTHOR]

In the title compound, [Gd(C7H6NO2)3(H2O)] n, a two-dimensional coordination polymer, the eight-coordinate GdIII ions are bridged by two carboxyl­ate groups from two μ2- p-amino­benzoate ligands, forming a centrosymmetric dinuclear block. These blocks are further connected by μ3- p-amino­benzoate ligands, yielding a two-dimensional network. The coordination polymers thus formed are connected via hydrogen bonds, producing a three-dimensional supra­molecular structure. [ABSTRACT FROM AUTHOR]

The complex mol­ecule of the title compound, [NiCl2(C6H8N2)(C12H8N2)]·CH4O, has twofold rotation symmetry. The complex has a distorted octa­hedral NiCl2N4 coordination. Hydrogen-bonding and π–π stacking inter­actions help to stabilize the crystal structure. [ABSTRACT FROM AUTHOR]

The title nickel(II) coordination polymer, viz. poly[[bis­(1,10-phenanthroline)tris­(μ3-1,4-phenyl­enediacetato)trinickel(II)] dihydrate], {[Ni3(C10H8O4)3(C12H8N2)2]·2H2O} n, consists of linear trinuclear building blocks with two crystallographically unique Ni atoms. One NiII atom and the geometric centre of one 1,4-phenyl­enediacetate ligand in the trinuclear unit both lie on inversion centres, while the other unique NiII atom lies near the inversion centre, together with another 1,4-phenyl­enediacetate ligand. Each pair of adjacent trinuclear units is bridged by 1,4-phenyl­enediacetate ligands, forming two kinds of infinite chains along the a and b axes, respectively. These two kinds of chains crosslink to yield a two-dimensional network in the ab plane. The two-dimensional sheets further stack along the c axis viaπ–π stacking inter­actions and hydrogen bonds, forming a three-dimensional supramolecular structure. [ABSTRACT FROM AUTHOR]

In the title compound, [Ni(C6H16N2)2(H2O)2]Cl2, the NiII cation (site symmetry ) is coordinated by two N, N-bidentate ligands and two water molecules, resulting in a slightly distorted trans-NiO2N4 octahedron. The complex cations and chloride anions are linked by N—H...Cl and O—H...Cl hydrogen bonds into a chain. [ABSTRACT FROM AUTHOR]