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Penta-ammonium hepta-sodium bis-[penta-kis(μ(2)-oxido)deca-oxido-bis-(μ(5)-phosphato)penta-molybdenum(VI)] henicosa-hydrate.

Bih H, Bih L, Manoun B, Azrour M, Lazor P, El Ammari L - Acta Crystallogr Sect E Struct Rep Online (2010)

Bottom Line: The anions are chiral and the two independent anions in the asymmetric unit were arbitarily chosen with the same chirality, but the centrosymmetric crystal contains both enanti-omers.The structure can alternatively be described as a succession of layers parallel to (101), formed by the [Mo(5)P(2)O(23)](6-) anions and linked by sodium chains.Water mol-ecules and ammonium ions fill the remaining space and ensure the cohesion through extensive N-H⋯O and O-H⋯O hydrogen bonding.

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ABSTRACT
The title compound, (NH(4))(5)Na(7)[Mo(5)P(2)O(23)](2)·21H(2)O, was prepared under atmospheric conditions in aqueous solution at room temperature. The structure contains the [Mo(5)P(2)O(23)](6-) heteropolyoxometallate anion, which has been previously reported a number of times with a variety of differing counter-cations. Each anion is built up of five MoO(6) octa-hedra sharing an edge and forming a ring which is closed by common corners of the terminal octa-hedra. The rings are closed on both sides by two asymmetric PO(4) tetra-hedra, sharing three corners with three MoO(6) octa-hedra. The anions are chiral and the two independent anions in the asymmetric unit were arbitarily chosen with the same chirality, but the centrosymmetric crystal contains both enanti-omers. The structure can alternatively be described as a succession of layers parallel to (101), formed by the [Mo(5)P(2)O(23)](6-) anions and linked by sodium chains. Water mol-ecules and ammonium ions fill the remaining space and ensure the cohesion through extensive N-H⋯O and O-H⋯O hydrogen bonding.

No MeSH data available.


Interconnections of sodium octahedra in the crystal structure. Symetrie codes:i(x, -1+y, 1+z); ii(1-x,1-y, 1-z); iii(1+x, 1+y, z) iv(1-x, 2-y, 1-z); v(2-x, 1-y, 1-z)
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Fap4: Interconnections of sodium octahedra in the crystal structure. Symetrie codes:i(x, -1+y, 1+z); ii(1-x,1-y, 1-z); iii(1+x, 1+y, z) iv(1-x, 2-y, 1-z); v(2-x, 1-y, 1-z)


Penta-ammonium hepta-sodium bis-[penta-kis(μ(2)-oxido)deca-oxido-bis-(μ(5)-phosphato)penta-molybdenum(VI)] henicosa-hydrate.

Bih H, Bih L, Manoun B, Azrour M, Lazor P, El Ammari L - Acta Crystallogr Sect E Struct Rep Online (2010)

Interconnections of sodium octahedra in the crystal structure. Symetrie codes:i(x, -1+y, 1+z); ii(1-x,1-y, 1-z); iii(1+x, 1+y, z) iv(1-x, 2-y, 1-z); v(2-x, 1-y, 1-z)
© Copyright Policy - open-access
Related In: Results  -  Collection

License
Show All Figures
getmorefigures.php?uid=PMC2983582&req=5

Fap4: Interconnections of sodium octahedra in the crystal structure. Symetrie codes:i(x, -1+y, 1+z); ii(1-x,1-y, 1-z); iii(1+x, 1+y, z) iv(1-x, 2-y, 1-z); v(2-x, 1-y, 1-z)
Bottom Line: The anions are chiral and the two independent anions in the asymmetric unit were arbitarily chosen with the same chirality, but the centrosymmetric crystal contains both enanti-omers.The structure can alternatively be described as a succession of layers parallel to (101), formed by the [Mo(5)P(2)O(23)](6-) anions and linked by sodium chains.Water mol-ecules and ammonium ions fill the remaining space and ensure the cohesion through extensive N-H⋯O and O-H⋯O hydrogen bonding.

View Article: PubMed Central - HTML - PubMed

ABSTRACT
The title compound, (NH(4))(5)Na(7)[Mo(5)P(2)O(23)](2)·21H(2)O, was prepared under atmospheric conditions in aqueous solution at room temperature. The structure contains the [Mo(5)P(2)O(23)](6-) heteropolyoxometallate anion, which has been previously reported a number of times with a variety of differing counter-cations. Each anion is built up of five MoO(6) octa-hedra sharing an edge and forming a ring which is closed by common corners of the terminal octa-hedra. The rings are closed on both sides by two asymmetric PO(4) tetra-hedra, sharing three corners with three MoO(6) octa-hedra. The anions are chiral and the two independent anions in the asymmetric unit were arbitarily chosen with the same chirality, but the centrosymmetric crystal contains both enanti-omers. The structure can alternatively be described as a succession of layers parallel to (101), formed by the [Mo(5)P(2)O(23)](6-) anions and linked by sodium chains. Water mol-ecules and ammonium ions fill the remaining space and ensure the cohesion through extensive N-H⋯O and O-H⋯O hydrogen bonding.

No MeSH data available.