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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.

| S-EPMC3051935 | biostudies-literature

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

Project description:In the title complex, [Mn(CH(3)CO(2))(2)(C(11)H(9)N(5))], the Mn(II) atom is coordinated by the pyridine N atom and two pyrazole N atoms from a 2,6-bis-(pyrazol-3-yl)pyridine ligand and four O atoms from two bidentate acetate ligands. The complex mol-ecules are linked by inter-molecular N-H⋯O hydrogen bonds into a chain along [010]. π-π inter-actions between the pyridine rings and between the pyrazole rings [centroid-centroid distances = 3.772 (2) and 3.546 (2) Å] connect the chains.

| S-EPMC3099944 | biostudies-literature

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

Project description:In the polymeric title copper(II) compound, [Cu(CHO(2))(2)(C(8)H(6)N(2))](n), both formato ligands are O-bidentate anions and act as bridging ligands, creating a planar polymeric arrangement. The slightly distorted square-pyramidal coordination around Cu(II) comprises four O atoms from two different formate anions as the base and a quinoxaline mol-ecule in the apical position.

| S-EPMC2914937 | biostudies-literature

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

Project description:In the title compound, {[Cu(C(10)H(14)N(4)Se)(2)](ClO(4))(2)}(n), the Cu(II) ion is located on a twofold rotation axis and has a tetra-gonally distorted square-planar geometry constituted by four N atoms. A pair of bis(3,5-dimethyl-1H-pyrazol-4-yl) selenide (L) ligands bridges the copper centers into a polymeric chain extending along [001]. The perchlorate anions are involved in inter-molecular N-H?O hydrogen bonding, which links the chains into layers parallel to the bc plane.

| S-EPMC2971148 | biostudies-literature

(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.

| S-EPMC2960151 | biostudies-literature

Aqua-(benzene-1,2-dicarboxyl-ato-κO)bis-[2-(1H-pyrazol-3-yl-κN)pyridine-κN]cadmium(II).

Project description:In the mononuclear title complex, [Cd(C(8)H(4)O(4))(C(8)H(7)N(3))(2)(H(2)O)], the Cd(II) atom is six-coordinated in a distorted octa-hedral geometry by four N atoms from two bidentate chelating 2-(1H-pyrazol-3-yl)pyridine ligands, one O atom from a benzene-1,2-dicarboxyl-ate ligand and one water mol-ecule. The mol-ecular structure features intra-molecular O-H⋯O and N-H⋯O hydrogen bonds. In the crystal structure, the complex mol-ecules are assembled into a two-dimensional supra-molecular layer parallel to (011) via O-H⋯O and N-H⋯O hydrogen bonds and π-π stacking inter-actions between the pyridyl and pyrazole rings [centroid-centroid distances = 3.544 (2) and 3.722 (3) Å].

| S-EPMC2983402 | 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.

| S-EPMC2960162 | biostudies-literature

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

Acetonitrile-{3-[bis-(2-pyridyl-methyl-κN)amino-κN]propanol-κO}(perchlorato-κO)copper(II) perchlorate.

Project description:In the title compound, [Cu(ClO(4))(C(2)H(3)N)(C(15)H(19)N(3)O)]ClO(4), the Cu(II) ion is coordinated by three N atoms and a hydroxyl-O atom of the tetra-dentate ligand, an O atom of a perchlorate ion and an N atom of an acetonitrile ligand giving a tetra-gonally distorted octa-hedral environment around the copper(II) atom. There is an offset inter-complex face-to-face π-π inter-action [centroid-centroid distance = 3.718 (2) Å] involving one of the pyridine rings of the ligand as well as an intra-complex O-H⋯O hydrogen-bonding inter-action between the coordinated hydroxyl group of the ligand and the perchlorate counter-ion.

| S-EPMC3051508 | biostudies-literature

[Aqua-bis-(nitrato-κO)copper(II)]-μ-{bis-[5-methyl-3-(pyridin-2-yl)-1H-pyrazol-4-yl]selenide}-[diaqua-(nitrato-κO)copper(II)] nitrate monohydrate.

Project description:In the title binuclear complex, [Cu2(NO3)3(C18H16N6Se)(H2O)3]NO3·H2O, the Cu(II) ions are penta-coordinated in a tetra-gonal-pyramidal geometry. In both cases, the equatorial planes are formed by a chelating pyrazole-pyridine group, a water mol-ecule and a nitrate O atom, whereas the apical positions are occupied by a water mol-ecule for one Cu(II) ion and a nitrate O atom for the other. The organic selenide ligand adopts a trans configuration with respect to the C-Se-C plane. Numerous inter-molecular O-H⋯O and N-H⋯O hydrogen bonds between the coordinating and lattice water mol-ecules, nitrate anions and pyrazole groups are observed. π-π stacking inter-actions between the pyridine rings [averaged centroid-centroid distance = 3.652 (5) Å] are also present. The lattice water molecule is equally disordered over two sets of sites.

| S-EPMC3588734 | biostudies-literature

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