Synthesis and structures of Cs3TaSe4 and Cs3NbSe4

Hoseop Yun*, Clayton R. Randall, James A. Ibers

*Corresponding author for this work

Research output: Contribution to journalArticle

28 Scopus citations

Abstract

A study of the alkali metal tetraselenometalate system has afforded two new isostructural phases, Cs3TaSe4 and Cs3NbSe4. The structures of these phases have been determined by X-ray and neutron powder diffraction techniques. Cs3TaSe4 crystallizes in the orthorhombic system (D162h-Pnma, a = 10.277(1), b = 11.918(1), c = 10.238(1) Å) with four formula units in the cell. The structure contains discrete TaSe3-4 ions (TaSe, 2.369(4), 2.374(7), 2.397(6) Å) and Cs+ cations. Out to 4 Å the Cs cations are surrounded by five or seven Se atoms.

Original languageEnglish (US)
Pages (from-to)109-114
Number of pages6
JournalJournal of Solid State Chemistry
Volume76
Issue number1
DOIs
StatePublished - Sep 1988

ASJC Scopus subject areas

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

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