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砷酸银钼酸钠(NaAg₂Mo₃O₉AsO₄)

NaAg(2)Mo(3)O(9)AsO(4).

作者信息

Hamza Hamadi, Zid Mohamed Faouzi, Driss Ahmed

机构信息

Laboratoire de Matériaux et Cristallochimie, Faculté des Sciences de Tunis, Université de Tunis El Manar, 2092 Manar II Tunis, Tunisia.

出版信息

Acta Crystallogr Sect E Struct Rep Online. 2010 Sep 4;66(Pt 10):i69. doi: 10.1107/S160053681003463X.

DOI:10.1107/S160053681003463X
PMID:21587345
原文链接:https://pmc.ncbi.nlm.nih.gov/articles/PMC2983299/
Abstract

The title compound, sodium disilver arsenatotrimolybdate, Na(0.93 (1))Ag(2.07 (1))Mo(3)AsO(13), was prepared by a solid-state reaction. In the crystal structure, isolated AsO(4) tetra-hedra share corners with groups of three edge-sharing MoO(6) octa-hedra. This arrangement leads to the formation of anionic (1) (∞)Mo(3)AsO(13) ribbons extending parallel to [100]. The three metal sites show occupational disorder by Ag(I) and Na(I) cations, each with a different Ag:Na ratio. The metal cations are situated in the space between the ribbons and are surrounded by terminal O atoms of the ribbons in the form of distorted MO(7) polyhedra (M = Ag, Na) for distances < 3.0 Å. The title compound shows weak ionic conductivity. Structural relationships between different compounds in the quaternary systems M-Sb-P-O, M-Nb-P-O and M-Mo-As-O (M is Ag or an alkali metal) are also discussed.

摘要

标题化合物砷酸三钼二银钠(Na(0.93 (1))Ag(2.07 (1))Mo(3)AsO(13))通过固相反应制备。在晶体结构中,孤立的AsO(4)四面体与由三个共边的MoO(6)八面体组成的基团共用顶点。这种排列导致形成沿[100]方向延伸的阴离子(1) (∞)[Mo(3)AsO(13)]n 带。三个金属位点存在Ag(I)和Na(I)阳离子的占位无序,每个位点的Ag:Na比例不同。金属阳离子位于带之间的空间中,并以扭曲的MO(7)多面体(M = Ag、Na)形式被带的端基O原子包围,距离< 3.0 Å。标题化合物显示出弱离子导电性。还讨论了四元体系M-Sb-P-O、M-Nb-P-O和M-Mo-As-O(M为Ag或碱金属)中不同化合物之间的结构关系。

https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1502/2983299/b339ad363da4/e-66-00i69-fig4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1502/2983299/da1db8e72725/e-66-00i69-fig1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1502/2983299/b6622366a7df/e-66-00i69-fig2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1502/2983299/9b6f4e67b56a/e-66-00i69-fig3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1502/2983299/b339ad363da4/e-66-00i69-fig4.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1502/2983299/da1db8e72725/e-66-00i69-fig1.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1502/2983299/b6622366a7df/e-66-00i69-fig2.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1502/2983299/9b6f4e67b56a/e-66-00i69-fig3.jpg
https://cdn.ncbi.nlm.nih.gov/pmc/blobs/1502/2983299/b339ad363da4/e-66-00i69-fig4.jpg

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[Li(MoO2)2O(AsO4)].
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