Crystal structure of [[mu-bis(salicylidene)-1,3-propanediaminato]copper(II)]dibromozinc(II).

The title compound is a double oxygen-bridged dimeric heteronuclear metal complex. The coordination around the Cu atom is distorted square-planar involving two O and two N atoms from the bis(salicylidene)-1,3-propanediamine ligand. The Zn atom in the molecule has a distorted tetrahedral coordination sphere consisting of the two O atoms of the ligand and the two Br atoms. The bridging plane between the metal atoms is not planar.     

Crystal structure of bis(iso-maleonitril-edithiolate)nickel(II) benzylpiperidinium

Bis(iso-maleonitriledithiolate)nickel(II) benzylpiperidinium, [BzPid]₂[Ni(i-mnt)₂] (1) is prepared and characterized by elemental analyses, UV, IR, molar conductivity, and single crystal X-ray diffraction. It is found that 1 crystallizes in the monoclinic space group P2₁/n with a = 9.551(1) Å, b = 16.520(2) Å, c = 11.004(1) Å, β = 96.60(1)°, V = 1724.6(3) ų, Z = 2. Consolidate the stacking of the molecules The electrostatic interaction between [Ni(i-mnt)₂]^2? anions and [BzPid]⁺ cations consolidates the stacking of the molecules.     

Structure of tetrakis((1,3-diethyl-2-thiobarbiturato)(butanol-1))dicobalt(II)

The structure of the dimeric complex [Co₂(BuOH)₄(Detba)₄] (I), where НDetba is 1,3-diethyl-2-thiobarbituric acid, and BuOH is butanol-1, is determined (CIF file CCDC 1475273), and its IR spectrum is studied. The crystals are monoclinic: a = 10.7185(5), b = 21.985(1), c = 12.7235(7) Å, β = 92.196(2)°, V = 2996.1(3) ų, space group P2₁/c, Z = 2. The Co²⁺ ions in compound I are joined in pairs by bridging ligands μ₂-Detba^–?O,O'. In addition, each of them is linked through the O atoms to one terminal Detba–ion and two BuOH molecules to form a trigonal bipyramid СоО₅. Hydrogen bonds O–H···O formed by BuOH and Detba^– join the binuclear complexes into an infinite chain. The data of IR spectroscopy are consistent with the results of X-ray diffraction analysis.     

Crystal structure of [N,N'-bis(5-chlorosalicylidene)-1,3-diaminopropane]iron(II).

The crystal structure of the title compound has been determined. The coordination geometry about the iron(II) center is a tetrahedrally distorted square plane formed by the four-coordinate N2O2 donor set of the Schiff-base imine-phenol ligand. Molecules of the title compound are not planar. The two Schiff-base moieties, which themselves are reasonably planar, are inclined at an angle of 31.5(1) degrees.     

Crystal structure oftrans-(benzyl-C)bis(dimethylglyoximato-N,N′)-(morpholine-N)cobalt(III)-monohydrate

Summary The title compound crystallizes in the monoclinic space group P2₁/n, with cell dimensions:a = 8.535(4) Å,b = 13.009(4) Å,c = 20.615(5) Å, = 100.57(3) and Z = 4. The central cobalt atom coordination is a slightly distorted octahedron, formed by five N-atoms (two glyoximes and morpholine) and one C-atom.The interaction between the complex Co-units is weak: the strongest nearest neighbour interaction is formed by a hydrogen bridge in which the water molecule of crystallization acts as the donor part.     

Crystal structure of (1,10-phenanthroline-N,N')(1,4,7,10-tetraazacyclododecane-N,N',N",N"')nickel(II) diperchlorate.

The crystal structure of the title compound, [Ni(C8H20N4)(C12H8N2)](ClO4)2, has been determined by X-ray diffraction. The Ni(II) ion is six coordinated with four nitrogen atoms of the tetradentate macrocyclic ligand and two nitrogen atoms of the bidentate ligand in a distorted octahedron geometry. The folded tetradentate macrocyclic ligand adopts a configuration having four five-membered chelate rings in distorted eclipsed conformations. The four hydrogen atoms of the amine groups of the macrocyclic ligand are on the same side towards the bidentate ligand.