Crystal structure of Na(2)HfSi(2)O(7) by Rietveld refinement

The structure of triclinic disodium hafnium disilicate, Na(2)HfSi(2)O(7), has been determined by laboratory powder X-ray diffraction and refined by the Rietveld refinement. The structure is a framework made of alternate layers of HfO(6) octa­hedra and SiO(4) tetra­hedra linked by common O atoms. Sod...

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Detalles Bibliográficos
Autores principales: Massoni, Nicolas, Chevreux, Pierrick
Formato: Online Artículo Texto
Lenguaje:English
Publicado: International Union of Crystallography 2016
Materias:
Research Communications
Acceso en línea:https://www.ncbi.nlm.nih.gov/pmc/articles/PMC5050771/
https://www.ncbi.nlm.nih.gov/pubmed/27746936
http://dx.doi.org/10.1107/S2056989016014225
Descripción
Sumario:The structure of triclinic disodium hafnium disilicate, Na(2)HfSi(2)O(7), has been determined by laboratory powder X-ray diffraction and refined by the Rietveld refinement. The structure is a framework made of alternate layers of HfO(6) octa­hedra and SiO(4) tetra­hedra linked by common O atoms. Sodium atoms are located in the voids of the framework, aligned into tunnels along the [010] direction. Na(2)HfSi(2)O(7) is isostructural with the parakeldyshite Na(2)ZrSi(2)O(7) phase.

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