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Di-?-acetato-?-aqua-bis-[acetatobis(1H-benzimidazole)cobalt(II)].

ABSTRACT: In the title compound, [Co(2)(C(2)H(3)O(2))(4)(C(7)H(6)N(2))(4)(H(2)O)], the half-mol-ecule in the asymmetric unit is completed by a crystallographic twofold rotation axis to give the full mol-ecule. The Co(II) ions are approximately octahedrally coordinated with a cis-N(2)O(4) coordination sphere. The compound features intra-molecular O-H?O hydrogen bonds between the non-bridging acetate groups and the bridging water mol-ecule, and inter-molecular N-H?O hydrogen bonds between the acetates and amine H atoms of the benzimidazoles which determine the mol-ecular packing in the crystal structure.

SUBMITTER: Zimmermann I

PROVIDER: S-EPMC2961362 | biostudies-literature | 2008 May

REPOSITORIES: biostudies-literature

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Di-μ-acetato-μ-aqua-bis-[acetatobis(1H-benzimidazole)cobalt(II)].

Zimmermann Iwan I Keene Tony D TD Neels Antonia A Decurtins Silvio S

Acta crystallographica. Section E, Structure reports online 20080530 Pt 6

In the title compound, [Co(2)(C(2)H(3)O(2))(4)(C(7)H(6)N(2))(4)(H(2)O)], the half-mol-ecule in the asymmetric unit is completed by a crystallographic twofold rotation axis to give the full mol-ecule. The Co(II) ions are approximately octahedrally coordinated with a cis-N(2)O(4) coordination sphere. The compound features intra-molecular O-H⋯O hydrogen bonds between the non-bridging acetate groups and the bridging water mol-ecule, and inter-molecular N-H⋯O hydrogen bonds between the acetates and a ...[more]

PMID: 21202524

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Poly[tri-μ-aqua-di-aqua-μ-phosphono-formato-cobalt(II)sodium].

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Poly[bis-(μ(4)-acetato-κO:O:O':O')bis-(μ(3)-acetato-κO:O:O)(μ(2)-acetato-κO:O')(μ(2)-acetic acid-κO:O')di-μ-aqua-copper(II)tris-odium].

Project description:In the title compound, [CuNa(3)(CH(3)CO(2))(5)(CH(3)COOH)(H(2)O)(2)](n), the Cu(II) atom lies on an inversion center and is coordinated by four O atoms from four acetate ligands, leading to a square-planar geometry. One Na(I) atom, lying on an inversion center, is coordinated by four O atoms from four acetate ligands and two bridging water mol-ecules in a distorted octa-hedral geometry. The other Na(I) atom is coordinated by five O atoms from five acetate ligands and a bridging water mol-ecule. A hy-droxy H atom lies on a twofold rotation axis and is shared by two acetate ligands. The crystal packing exhibits a polymeric layer parallel to (100), which is further stablized by intra-layer O-H⋯O hydrogen bonds. The layers are linked by inter-layer O-H⋯O hydrogen bonds.

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Poly[di-μ-aqua-diaqua-di-μ(6)-malonato-cobalt(II)dipotassium(I)].

Project description:In the title complex, [CoK(2)(C(3)H(2)O(4))(2)(H(2)O)(4)](n), the Co atom is located on a position with site symmetry 2/m, the K atom and one water mol-ecule are located on a mirror plane, and the malonate and one water mol-ecule are located on a twofold rotation axis. The K(I) atom is seven-coordinated by four carboxyl-ate O atoms from four malonate ligands and by three water O atoms, forming a distorted polyhedron. The Co(II) atom is in an almost octa-hedral environment formed by four carboxyl-ate O atoms from two malonate ligands and two water O atoms. The structure consists of layers parallel to (20[Formula: see text]) built up from edge-sharing KO(7) and CoO(6) polyhedra, which are connected by O-H⋯O hydrogen bonding including water mol-ecules into a three-dimensional network.

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Acetato-chlorido[2,2'-(ethane-1,2-di-yl)di-1H-benzimidazole]-copper(II) monohydrate.

Project description:In the title complex, [Cu(CH(3)COO)Cl(C(16)H(14)N(4))]·H(2)O, the Cu(II) ion is five-coordinated by two N atoms from a 2,2'-(ethane-1,2-di-yl)di-1H-benzimidazole ligand, two O atoms from a chelating acetate ligand and one terminal monodentate Cl atom in a distorted square-pyramidal geometry. In the crystal, adjacent mol-ecules are linked through O-H⋯Cl, N-H⋯Cl, N-H⋯O and O-H⋯O hydrogen bonds into a three-dimensional network.

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Bis[μ-2-(2-naphth-oxy)acetato]bis-{aqua[2-(2-naphth-oxy)acetato]zinc(II)}.

Project description:The title binuclear Zn(II) compound, [Zn(2)(C(12)H(9)O(3))(4)(H(2)O)(2)], is centrosymmetric. Each Zn atom is coordinated by two bridging 2-naphthoxyacetate anions, one terminal 2-naphth-oxy-acetate anion and one water mol-ecule in a distorted ZnO(4) tetra-hedral geometry. The naphthalene system of the bridging ligand is nearly perpendicular to the naphthalene of the terminal ligand, with a dihedral angle of 78.26 (6)°. Within the binuclear mol-ecule the Zn⋯Zn separation is 3.815 (5) Å. In the crystal structure, inter-molecular O-H⋯O hydrogen bonding between the water mol-ecule and carboxyl-ate groups helps to stabilize the crystal structure.

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