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Penta-potassium ?-arsenato-bis-(hy-droxy-tetra-molybdate) dihydrate.

ABSTRACT: The title arsenatomolybdate, K(5)[Mo(8)O(24)(OH)(2)(AsO(4))]·2H(2)O, which was obtained hydro-thermally, features an [AsMo(8)O(28)(OH)(2)](5-) anion, which is formed by two Mo(4)O(14)(OH) units that are linked by As in a sandwich-like fashion. The overall symmetry of the anion is m2m. The {Mo(4)O(14)(OH)} core is composed of two pairs of confacial biocta-hedral {Mo(2)O(9)} units with two ?(4)-O atoms which have been characterized as hydroxyl groups. The anions are further inter-connected by potassium cations, forming a three-dimensional network structure with the uncoordinated water mol-ecules occupying the channels. The structure is further stabilized by O-H?O hydrogen bonding.

SUBMITTER: Yu HH

PROVIDER: S-EPMC3051606 | biostudies-literature | 2011 Jan

REPOSITORIES: biostudies-literature

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Penta-potassium μ-arsenato-bis-(hy-droxy-tetra-molybdate) dihydrate.

Yu Hai-Hui HH Kong Li L Cui Ji-Wen JW Wang Hai-Tao HT

Acta crystallographica. Section E, Structure reports online 20110115 Pt 2

The title arsenatomolybdate, K(5)[Mo(8)O(24)(OH)(2)(AsO(4))]·2H(2)O, which was obtained hydro-thermally, features an [AsMo(8)O(28)(OH)(2)](5-) anion, which is formed by two Mo(4)O(14)(OH) units that are linked by As in a sandwich-like fashion. The overall symmetry of the anion is m2m. The {Mo(4)O(14)(OH)} core is composed of two pairs of confacial biocta-hedral {Mo(2)O(9)} units with two μ(4)-O atoms which have been characterized as hydroxyl groups. The anions are further inter-connected by pota ...[more]

PMID: 21522812

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