The structural investigation of Ba4Bi3F17

E. N. Dombrovski, T. V. Serov, A. M. Abakumov, E. I. Ardashnikova, V. A. Dolgikh, G. Van Tendeloo

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11 Citations (Scopus)

Abstract

The anion-excess ordered fluorite-related phase Ba4Bi 3F17 has been synthesized by a solid state reaction of BaF2 and BiF3 at 873K. The crystal structure of Ba 4Bi3F17 has been studied using electron diffraction and X-ray powder diffraction (a=11.2300(2)Å, c=20.7766(5)Å, S.G. R3̄, RI=0.020, RP=0.036). Interstitial fluorine atoms in the Ba4Bi3F17 structure are considered to form isolated cuboctahedral 8:12:1 clusters. The structural relationship between Ba4Bi3F17 and similar rare-earth-based phases is discussed.

Original languageEnglish
Pages (from-to)312-318
Number of pages7
JournalJournal of Solid State Chemistry
Volume177
Issue number1
DOIs
Publication statusPublished - Jan 2004
Externally publishedYes

Keywords

  • BaBiF
  • Crystal structure
  • Cuboctahedral clusters
  • Fluorides
  • Fluorite-like

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