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Dipotassium hexa-aqua-nickel(II) bis-[hexa-fluoridozirconate(IV)].

Oudahmane A, Mnaouer N, El-Ghozzi M, Avignant D - Acta Crystallogr Sect E Struct Rep Online (2010)

Bottom Line: The monoclinic structure is isotypic with its K(2)Cu, K(2)Zn, Cs(2)Zn and Cs(2)Cu analogues.The structure is built up from isolated, slightly elongated octa-hedral [Ni(H(2)O)(6)](2+) complex cations (symmetry ) and dimeric [Zr(2)F(12)](4-) complex anions (symmetry ) that are also isolated from each other.An intricate O-H⋯F hydrogen-bonding network consolidates the structure.

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Affiliation: Université Blaise Pascal, Laboratoire des Matériaux Inorganiques, UMR CNRS 6002, 24 Avenue des Landais, 63177 Aubière, France.

ABSTRACT
Single crystals of the title compound, K(2)[Ni(H(2)O)(6)][ZrF(6)](2), were grown by slow evaporation of a 40% aqueous HF solution in which a stoichiometric mixture of NiCl(2)·6H(2)O, ZrF(4) and KCl was dissolved. The monoclinic structure is isotypic with its K(2)Cu, K(2)Zn, Cs(2)Zn and Cs(2)Cu analogues. The structure is built up from isolated, slightly elongated octa-hedral [Ni(H(2)O)(6)](2+) complex cations (symmetry ) and dimeric [Zr(2)F(12)](4-) complex anions (symmetry ) that are also isolated from each other. The [Zr(2)F(12)](4-) anion results from the association of two distorted penta-gonal-bipyramidal [ZrF(7)] coordination polyhedra by sharing an equatorial edge passing through an inversion center of the unit cell. Both isolated [Ni(H(2)O)(6)](2+) and [Zr(2)F(12)](4-) complex ions are situated in planes parallel to (010). They are connected by the eight-coordinated K(+) ions into a three-dimensional structure. An intricate O-H⋯F hydrogen-bonding network consolidates the structure.

No MeSH data available.


Related in: MedlinePlus

Projection of the crystal structure of K2[Ni(H2O)6][ZrF6]2 along [100] showing the hydrogen-bonding interactions.
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Fap2: Projection of the crystal structure of K2[Ni(H2O)6][ZrF6]2 along [100] showing the hydrogen-bonding interactions.


Dipotassium hexa-aqua-nickel(II) bis-[hexa-fluoridozirconate(IV)].

Oudahmane A, Mnaouer N, El-Ghozzi M, Avignant D - Acta Crystallogr Sect E Struct Rep Online (2010)

Projection of the crystal structure of K2[Ni(H2O)6][ZrF6]2 along [100] showing the hydrogen-bonding interactions.
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC3050341&req=5

Fap2: Projection of the crystal structure of K2[Ni(H2O)6][ZrF6]2 along [100] showing the hydrogen-bonding interactions.
Bottom Line: The monoclinic structure is isotypic with its K(2)Cu, K(2)Zn, Cs(2)Zn and Cs(2)Cu analogues.The structure is built up from isolated, slightly elongated octa-hedral [Ni(H(2)O)(6)](2+) complex cations (symmetry ) and dimeric [Zr(2)F(12)](4-) complex anions (symmetry ) that are also isolated from each other.An intricate O-H⋯F hydrogen-bonding network consolidates the structure.

View Article: PubMed Central - HTML - PubMed

Affiliation: Université Blaise Pascal, Laboratoire des Matériaux Inorganiques, UMR CNRS 6002, 24 Avenue des Landais, 63177 Aubière, France.

ABSTRACT
Single crystals of the title compound, K(2)[Ni(H(2)O)(6)][ZrF(6)](2), were grown by slow evaporation of a 40% aqueous HF solution in which a stoichiometric mixture of NiCl(2)·6H(2)O, ZrF(4) and KCl was dissolved. The monoclinic structure is isotypic with its K(2)Cu, K(2)Zn, Cs(2)Zn and Cs(2)Cu analogues. The structure is built up from isolated, slightly elongated octa-hedral [Ni(H(2)O)(6)](2+) complex cations (symmetry ) and dimeric [Zr(2)F(12)](4-) complex anions (symmetry ) that are also isolated from each other. The [Zr(2)F(12)](4-) anion results from the association of two distorted penta-gonal-bipyramidal [ZrF(7)] coordination polyhedra by sharing an equatorial edge passing through an inversion center of the unit cell. Both isolated [Ni(H(2)O)(6)](2+) and [Zr(2)F(12)](4-) complex ions are situated in planes parallel to (010). They are connected by the eight-coordinated K(+) ions into a three-dimensional structure. An intricate O-H⋯F hydrogen-bonding network consolidates the structure.

No MeSH data available.


Related in: MedlinePlus