Crystal structure of Na2ZnP2O7: Reinvestigation

I. Belharouak, P. Gravereau, C. Parent, J. P. Chaminade, E. Lebraud, G. Le Flem

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Abstract

In the context of a detailed investigation of the luminescent properties of the Na(2-x)Ag(x)ZnP2O7 compounds, the structure of the pure sodium phosphates was 'revisited.' The crystal structure of Na2ZnP2O7 has been determined by X-ray diffraction using single crystals. A new model explaining the actual large unit cell (a = b = 2177.1(3) pm, c = 1028.5(2) pm, P42/n, Z = 32) was determined by assuming the existence of twins. The structure is made up of [ZnP2O7] layers consisting of corners sharing [P2O7] groups and [ZnO4] tetrahedra, and the sodium atoms are located between the layers in 7- or 8-fold coordinated sites. This model is discussed with respect to the crystal chemistry of the monovalent cation zinc phosphate. (C) 2000 Academic Press.

Original languageEnglish
Pages (from-to)466-473
Number of pages8
JournalJournal of Solid State Chemistry
Volume152
Issue number2
DOIs
Publication statusPublished - 1 Jan 2000

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ASJC Scopus subject areas

  • Electronic, Optical and Magnetic Materials
  • Ceramics and Composites
  • Condensed Matter Physics
  • Physical and Theoretical Chemistry
  • Inorganic Chemistry
  • Materials Chemistry

Cite this

Belharouak, I., Gravereau, P., Parent, C., Chaminade, J. P., Lebraud, E., & Le Flem, G. (2000). Crystal structure of Na2ZnP2O7: Reinvestigation. Journal of Solid State Chemistry, 152(2), 466-473. https://doi.org/10.1006/jssc.2000.8714