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Disodium tris-(dioxidomolybdenum) bis-(diarsenate).


ABSTRACT: The asymmetric unit of the title compound, Na(2)(MoO(2))(3)(As(2)O(7))(2), is composed of two cyclic MoAs(2)O(11) units and an MoO(6) corner-sharing octa-hedron. The anionic framework can be decomposed into two types of layers, viz. MoO(2)As(2)O(7) and Mo(2)As(2)O(14), which use mixed Mo-O-As and As-O-Mo bridges to achieve a new three-dimensional structure with two types of large channels in which the Na(+) cations are located. Two O atoms are disordered and are located in two positions close to their initial positions with occupancy ratios of 0.612?(17):0.388?(17) and 0.703?(12):0.298?(12).

SUBMITTER: Jouini R 

PROVIDER: S-EPMC3343776 | biostudies-literature | 2012 Apr

REPOSITORIES: biostudies-literature

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Disodium tris-(dioxidomolybdenum) bis-(diarsenate).

Jouini Raja R   Zid Mohamed Faouzi MF   Driss Ahmed A  

Acta crystallographica. Section E, Structure reports online 20120314 Pt 4


The asymmetric unit of the title compound, Na(2)(MoO(2))(3)(As(2)O(7))(2), is composed of two cyclic MoAs(2)O(11) units and an MoO(6) corner-sharing octa-hedron. The anionic framework can be decomposed into two types of layers, viz. MoO(2)As(2)O(7) and Mo(2)As(2)O(14), which use mixed Mo-O-As and As-O-Mo bridges to achieve a new three-dimensional structure with two types of large channels in which the Na(+) cations are located. Two O atoms are disordered and are located in two positions close to  ...[more]

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