Startseite A “missing” caesium member in the family of A3Al2P3O12 aluminophosphates
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A “missing” caesium member in the family of A3Al2P3O12 aluminophosphates

  • Larisa Shvanskaya EMAIL logo und Olga Yakubovich
Veröffentlicht/Copyright: 7. Februar 2017

Abstract

A new caesium aluminophosphate, Cs3Al2P3O12, has been synthesized by spontaneous crystallization from the melt and structurally characterized. The compound crystallizes in the orthorhombic space group Pnma, with a=9.7675(2) Å, b=17.7537(3) Å, c=8.1063(2) Å, V=1405.71(2) Å3, and Z=4. Its crystal structure is based on an open interrupted framework built by alternating AlO4 and PO4 tetrahedra with Cs ions occupying the channels. The Cs3Al2P3O12 framework topology resembles the previously known 4.8.12-net, which has been reported in the [C4N3H16][Al2P3O12] phase prepared by solvothermal synthesis in the presence of diethylenetriamine (DETA). The crystal chemical relationships between the K, Rb, Cs, Tl, [NH4] and [C4N3H16]-members of the A3Al2P3O12 family of compounds are discussed.

Acknowledgments

We thank V.O.Yapaskurt for the X-ray spectral analysis of the sample, N.V. Zubkova for her help in the X-ray experiment and L.V. Melchakova for the DTA and TGA experimental data. This work was supported in part by the Ministry of Education and Science of the Russian Federation in the framework of Increase Competitiveness Program of NUST “MISiS” (project No. K2-2016-066).

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Supplemental Material:

The online version of this article (DOI: 10.1515/zkri-2016-2012) offers supplementary material, available to authorized users.


Received: 2016-10-5
Accepted: 2017-1-10
Published Online: 2017-2-7
Published in Print: 2017-5-1

©2017 Walter de Gruyter GmbH, Berlin/Boston

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