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Bis[bis-(1H-pyrazol-1-yl)methane-κN,N](formato-κO,O')copper(II) perchlorate.

ABSTRACT: In the crystal structure of the title compound, [Cu(HCO(2))(C(7)H(8)N(4))(2)]ClO(4), the Cu(II) ion is octa-hedrally coordinated by one bidentate formate ion and two bidentate bis-(1H-pyrazol-1-yl)methane ligands. There are C-H⋯O hydrogen bonds and π-π inter-actions [centroid-centroid distance = 3.487 (3) Å] in the crystal structure. The perchlorate anion is disordered over two positions with an occupancy ratio of 0.628 (9):0.372 (9).

SUBMITTER: Zhao CJ

PROVIDER: S-EPMC3246920 | biostudies-literature |

REPOSITORIES: biostudies-literature

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[2,9-Bis(3,5-dimethyl-1H-pyrazol-1-yl-κN)-1,10-phenanthroline-κN,N'](methanol-κO)(nitrito-κO,O')cadmium(II) perchlorate.

Project description:In the title complex, [Cd(NO(2))(C(22)H(20)N(6))(CH(3)OH)]ClO(4), the Cd(II) ion is in a distorted penta-gonal-bipyramidal CdN(4)O(3) coordination geometry. The dihedral angles formed between the mean planes of the pyrazole rings and the phenanthroline ring system are 4.37 (19) and 5.84 (21)°. In the crystal, the anions and cations are connected by inter-molecular O-H⋯O hydrogen bonding, while pairs of weak inter-molecular C-H⋯O hydrogen bonds connect the cations into centrosymmetric dimers. In addition, there is a π-π stacking inter-action involving two symmetry-related benzene rings, with a centroid-centroid distance of 3.437 (3) Å.

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Bis(acetato-κO,O')[2,6-bis-(1H-pyrazol-3-yl-κN)pyridine-κN]manganese(II).

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Poly[bis-(μ(2)-formato-κO:O')(quinoxaline-κN)copper(II)].

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(Formato-κO)bis-(1,10-phenanthroline-κN,N')copper(II) formate hexa-hydrate.

Project description:In the title compound, [Cu(CHO(2))(C(12)H(8)N(2))(2)]CHO(2)·6H(2)O, the Cu atom is coordinated in a distorted trigonal-bipyramidal fashion by an O atom of the formate ligand and four N atoms of two phenanthroline ligands with Cu-O and Cu-N distances of 2.020 (3) and 1.978 (3)-2.177 (3) Å, respectively. Hydrogen bonding O-H⋯O between water molecules and between water anions as well as π-π inter-actions [centroid-centroid distances between phen rings = 3.38 (7) and 3.40 (5) Å] are responsible for the supra-molecular assembly.

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catena-Poly[[copper(II)-bis[?-bis(3,5-dimethyl-1H-pyrazol-4-yl) selenide]] bis(perchlorate)].

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| S-EPMC2971148 | biostudies-literature

Bis[(2-quinol-yl)methane-diol-κN,O](sulfato-κO)copper(II) dihydrate.

Project description:In the title compound, [Cu(SO(4))(C(10)H(9)NO(2))(2)]·2H(2)O, the Cu(II) ion is chelated by two (2-quinol-yl)methane-diol ligands and coordinated by a monodentate sulfate ligand in a distorted trigonal-bipyramidal environment, with O atoms occupying the equatorial sites and N atoms in the axial sites. The dihedral angle between the two essentially planar quinoline ring systems is 45.02 (9)°. In the crystal structure, an extensive O-H⋯O hydrogen-bonding network forms layers parallel to the ab plane.

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Bis(2,2'-bipyridine-κN,N')(nitrato-κO)copper(II) perchlorate.

Project description:In the title compound, [Cu(NO(3))(C(10)H(8)N(2))(2)]ClO(4), the five-coordinated Cu(II) atom has a distorted square-pyramidal CuN(4)O environment; the O atom is in the axial position whereas the N atoms from two bipyridine (bipy) ligands are in the equatorial plane. In the crystal, mol-ecules are assembled by C-H⋯O hydrogen bonding and π-π inter-actions between bipy groups [centroid-centroid distances = 3.7686 (16) and 3.7002 (16) Å] into a three-dimensional network. The nitrite anion is equally disordered over two sets of sites.

| S-EPMC3051949 | biostudies-literature

Aquabis(benzoato-κO)bis-(1H-imidazole-κN)copper(II) monohydrate.

Project description:In the title compound, [Cu(C(7)H(5)O(2))(2)(C(3)H(4)N(2))(2)(H(2)O)]·H(2)O, the Cu(II) atom is in a distorted square-pyramidal environment. The mol-ecules are assembled into double chains extending along [010] by N-H⋯O hydrogen bonds. These double chains are linked by O-H⋯O hydrogen bonds, forming layers parallel to (02); the layers are linked into a three-dimensional network by van der Waals inter-actions.

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Bis[bis-(2-ethyl-5-methyl-1H-imidazol-4-yl-κN)methane](nitrato-κO,O')nickel(II) nitrate.

Project description:In the title compound, [Ni(NO(3))(C(13)H(20)N(4))(2)]NO(3), the Ni(II) ion shows a distorted octa-hedral geometry formed by four N atoms from two bis-(2-ethyl-5-methyl-1H-imidazol-4-yl)methane ligands and two O atoms from a chelating nitrate anion. Three ethyl groups in the complex cation and the O atoms of the uncoordinated nitrate anion are disordered over two sets of positions [occupancy ratios of 0.52 (3):0.48 (3) and 0.63 (3):0.37 (3), respectively]. In the crystal, inter-molecular N-H⋯O hydrogen bonds connect the complex cations into a zigzag chain along [010] and further N-H⋯O hydrogen bonds between the chains and the uncoordinated nitrate anions lead to layers parallel to (100).

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Project description:In the structure of the title compound, [Cu(2)(NO(2))(4)(C(5)H(8)N(2))(4)], the asymmetric unit consists of two moieties containing one Cu ion, two nitrite ions and two 1-ethyl-1H-imidazole mol-ecules associated via weak Cu-O inter-actions. Each Cu(II) atom displays an elongted square-pyramidal CuN(2)O(3) coordination geometry with a slight tetra-hedral distortion in the basal plane. The dimeric units are linked into a three-dimensional network by C-H⋯O hydrogen bonds.

| S-EPMC3151931 | biostudies-literature

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