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. 2010 Mar 24;66(Pt 4):i30-i31.
doi: 10.1107/S1600536810010251.

Hexakis(tetra-aqua-sodium) deca-vanadate(V) dihydrate

Jessica Nilsson, Ebbe Nordlander, Ulrich Behrens, Dieter Rehder

Hexakis(tetra-aqua-sodium) deca-vanadate(V) dihydrate

Jessica Nilsson et al. Acta Crystallogr Sect E Struct Rep Online. .

Abstract

The title compound, {[Na(H(2)O)(4)](6)[V(10)O(28)]·2H(2)O}(n), crystallized from a H(2)O/THF/CH(3)CN solution (pH ca 6) containing equimolar amounts of NaVO(3) and N-(2-hydroxy-benz-yl)-N-(2-picol-yl)glycine. In the crystal structure, the deca-vanadate [V(10)O(28)](6-) anion ( symmetry) is coordinated, via four terminal oxide ligands of V centres, to two dinuclear [{Na(H(2)O)(3)}(2)(μ-H(2)O)(2)](2+) units. Inter-connection of these aquasodium-ion-sandwiched deca-vanadates to chains parallel to [001] is effected by μ-[{Na(H(2)O)(3)}(2)(μ-H(2)O)(2)](2+) units, bridging adjacent deca-vanadates via O=V. The structure is consolidated by an extensive network of O-H⋯O hydrogen bonds.

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Figures

Fig. 1.
Fig. 1.
An ORTEP view (50% probability level; hydrogen atoms omitted) of the decavanadate(6-) anion with its sandwiching and bridging [{Na(H2O)3}2(µ-H2O)2]2+ counter-ions.
Fig. 2.
Fig. 2.
Polygonal representation of a three-membered chain section. The decavanadates are shown in blue, the [{Na(H2O)3}2(µ-H2O)2]2+ counter-ions in yellow.
Fig. 3.
Fig. 3.
Detail view of the µ-[{Na(H2O)3}2(µ-H2O)2]2+ unit connecting two decavanadates via O4 and O4a.
See this image and copyright information in PMC

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