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首页> 外文期刊>Acta Crystallographica Section E: Crystallographic Communications >Crystal structure of Na2HfSi2O7 by Rietveld refinement
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Crystal structure of Na2HfSi2O7 by Rietveld refinement

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摘要

The structure of triclinic disodium hafnium disilicate, Na2HfSi2O7, 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 HfO6 octa­hedra and SiO4 tetra­hedra linked by common O atoms. Sodium atoms are located in the voids of the framework, aligned into tunnels along the 010 direction. Na2HfSi2O7 is isostructural with the parakeldyshite Na2ZrSi2O7 phase.

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