• Title of article

    Crystal structure of Na2HfSi2O7 by Rietveld refinement

  • Author/Authors

    Massonia, Nicolas CEA, DEN, DTCD, Marcoule, BP17171, F-30207 Bagnols sur Ceze, France , Chevreuxa, Pierrick CEA, DEN, DTCD, Marcoule, BP17171, F-30207 Bagnols sur Ceze, France

  • Pages
    8
  • From page
    1
  • To page
    8
  • Abstract
    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.
  • Keywords
    crystal structure , sodium hafnium disilicate , powder diffraction
  • Journal title
    Acta Crystallographica Section E: Crystallographic Communications
  • Serial Year
    2016
  • Record number

    2618909