Ab-initio structure determination of β-La2WO6

M. H. Chambrier, S. Kodjikian, R. M. Ibberson, F. Goutenoire

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28 Scopus citations

Abstract

The structure of the low-temperature form of β-La2WO6 has been determined from laboratory X-ray, neutron time-of-flight and electron diffraction data. This tungstate crystallizes in the non-centrosymmetric orthorhombic space group (no. 19) P212121, with Z=8, a=7.5196(1) Å, b=10.3476(1) Å, c=12.7944(2) Å, and a measured density 7.37(1) g cm-3. The structure consists of tungsten [WO6] octahedra and tetrahedral [OLa4]. Tungsten polyhedra are connected such that [W2O11]10- units are formed.

Original languageEnglish
Pages (from-to)209-214
Number of pages6
JournalJournal of Solid State Chemistry
Volume182
Issue number2
DOIs
StatePublished - Feb 2009
Externally publishedYes

Keywords

  • Electron microscopy
  • Oxide
  • X-ray and neutron diffraction

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