Cs4BiAs3Se7: A novel bismuth-selenoarsenate with infinite 1∞[BiAs3Se7]4- chains containing two different anions, [AsSe3]3- and trans-[As2Se4]4-

Michael Wachhold, Mercouri G. Kanatzidis

Research output: Contribution to journalArticle

13 Citations (Scopus)

Abstract

A new phase has been prepared by methanolothermal reaction of Cs2CO3, BiCl3 and Li3AsSe3 at 130 °C for 36 hours. Cs4BiAs3Se7 (I) reveals the first Bi-selenoarsenate polyanionic chain 1∞[Bi(As2Se4)(AsSe3)] 4-, consisting of Bi3+ ions in a distorted octahedral environment of [AsSe3]3- and trans-[As2Se4]4- units. The latter anion consists of a central "As24+" dumb-bell whereby two Se atoms are attached to each of the As atoms. Structural Data: Space Group P21/n, a = 13.404(4) Å, b = 23.745(8) Å, c = 13.880(4) Å, β= 99.324(6)°, Z = 8.

Original languageEnglish
Pages (from-to)1901-1904
Number of pages4
JournalZeitschrift fur Anorganische und Allgemeine Chemie
Volume626
Issue number9
DOIs
Publication statusPublished - 2000

Keywords

  • Bismuth chalcogenides
  • Crystal structure
  • Selenoarsenates

ASJC Scopus subject areas

  • Inorganic Chemistry

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