Synthesis and crystal structure of a new alkaline-earth metal chalcogenide: Barium ditelluride

Jing Li, Hong You Guo, James R. Carey, Suzanne Mulley, Davide M. Proserpio, Angelo Sironi

Research output: Contribution to journalArticle

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Abstract

During our exploration of kinetically stable solid state materials, we have discovered a new binary material, BaTe2, the first alkaline earth metal dichalcogenide prepared using flux growth technique. The crystal structure of BaTe2 was determined by single-crystal X-ray diffraction methods. It belongs to the tetragonal space group I4/mcm (No. 140) with lattice constants a = 7.181(1) A ̊, c = 8.898(2) A ̊, V = 458.8(1) A ̊3 and Z=4. The final residual index is converged to R=1.5%, wR2=3.5%. BaTe2 is a Zintl type compound isostructural to SrS2. Pairs of tellurium atoms form dimeric units (Te2)2- with a Te-Te separation of 2.7722(8) Å. The synthesis of BaTe2 at relatively low temperature has provided an alternative and convenient route for preparing new compounds in this category.

Original languageEnglish
Pages (from-to)1041-1048
Number of pages8
JournalMaterials Research Bulletin
Volume29
Issue number10
DOIs
Publication statusPublished - 1994

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Alkaline Earth Metals
Alkaline earth metals
alkaline earth metals
tellurium
Barium
barium
Crystal structure
routes
Tellurium
solid state
crystal structure
single crystals
synthesis
diffraction
Lattice constants
atoms
x rays
Single crystals
Fluxes
X ray diffraction

ASJC Scopus subject areas

  • Ceramics and Composites
  • Materials Chemistry

Cite this

Synthesis and crystal structure of a new alkaline-earth metal chalcogenide : Barium ditelluride. / Li, Jing; Guo, Hong You; Carey, James R.; Mulley, Suzanne; Proserpio, Davide M.; Sironi, Angelo.

In: Materials Research Bulletin, Vol. 29, No. 10, 1994, p. 1041-1048.

Research output: Contribution to journalArticle

Li, Jing ; Guo, Hong You ; Carey, James R. ; Mulley, Suzanne ; Proserpio, Davide M. ; Sironi, Angelo. / Synthesis and crystal structure of a new alkaline-earth metal chalcogenide : Barium ditelluride. In: Materials Research Bulletin. 1994 ; Vol. 29, No. 10. pp. 1041-1048.
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