The one-dimensional polyselenide compound CsGaSe3

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Abstract

A new one-dimensional phase, CsGaSe3 has been synthesized and characterized by single crystal X-ray diffraction, differential thermal analysis, and single crystal UV/Vis spectroscopy. The structure contains infinite chain anions, [GaSe(Se2)]- separated by Cs cations. The Ga3+ cation is in a distorted tetrahedral environment coordinated by each two Se2- and Se22- ions. The red crystals of CsGaSe3 absorb visible light at energies above 2.25 eV. Differential thermal analysis revealed that the compound does not melt below 1000°C. Crystal data: CsGaSe3, monoclinic, space group P21/c (No 14), a=7.727(1), b=13.014(3), c=6.705(1), β=106.39(3)°, Z=4, R1=0.0469.

Original languageEnglish
Pages (from-to)621-624
Number of pages4
JournalZeitschrift fur Anorganische und Allgemeine Chemie
Volume629
Issue number4
DOIs
Publication statusPublished - May 12 2003

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Keywords

  • Crystal structure
  • Semiconductors
  • Thermal analysis
  • X-ray diffraction

ASJC Scopus subject areas

  • Inorganic Chemistry

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