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Cis-Bis(nitrato-?O,O')bis-(triethyl-phosphine oxide-?O)nickel(II).

ABSTRACT: In the title compound, [Ni(NO(3))(2)(C(6)H(15)OP)(2)], the Ni(II) ion, lying on a crystallographic twofold axis, adopts a distorted octa-hedral coordination, consisting of O-donor atoms of two symmetry-related triethyl-phospine oxide and two bidentate nitrate ligands.

SUBMITTER: Seidel RW

PROVIDER: S-EPMC2969723 | biostudies-literature | 2009 May

REPOSITORIES: biostudies-literature

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cis-Bis(nitrato-κO,O')bis-(triethyl-phosphine oxide-κO)nickel(II).

Seidel Rüdiger W RW

Acta crystallographica. Section E, Structure reports online 20090507 Pt 6

In the title compound, [Ni(NO(3))(2)(C(6)H(15)OP)(2)], the Ni(II) ion, lying on a crystallographic twofold axis, adopts a distorted octa-hedral coordination, consisting of O-donor atoms of two symmetry-related triethyl-phospine oxide and two bidentate nitrate ligands. ...[more]

PMID: 21582983

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Bis(nitrato-κO)bis-[4,4,5,5-tetra-methyl-2-(5-methyl-1H-imidazol-4-yl-κN)-2-imidazoline-1-oxyl 3-oxide-κO]nickel(II).

Project description:In the centrosymmetric mononuclear title complex, [Ni(NO(3))(2)(C(11)H(17)N(4)O(2))(2)], the Ni(II) atom displays a distorted octa-hedral coordination geometry and is six-coordinated by two N,O-bidentate nitronyl nitroxide radical ligands and two monodentate nitrate anions.

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Bis(2-amino-pyrimidine-κN)aqua-(nitrato-κO)(nitrato-κO,O')zinc(II).

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Bis[(2-amino-phen-yl)methanol-κO,N]bis-(nitrato-κO)manganese(II).

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μ-2,3,5,6-Tetra-2-pyridylpyrazine-κN,N,N:κN,N,N-bis-[(methanol-κO)(nitrato-κO,O')(nitrato-κO)cadmium(II)].

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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.

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[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.

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