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 journalArticlepeer-review

13 Citations (Scopus)


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
Issue number9
Publication statusPublished - 2000


  • Bismuth chalcogenides
  • Crystal structure
  • Selenoarsenates

ASJC Scopus subject areas

  • Inorganic Chemistry

Fingerprint Dive into the research topics of 'Cs<sub>4</sub>BiAs<sub>3</sub>Se<sub>7</sub>: A novel bismuth-selenoarsenate with infinite <sup>1</sup>∞[BiAs<sub>3</sub>Se<sub>7</sub>]<sup>4-</sup> chains containing two different anions, [AsSe<sub>3</sub>]<sup>3-</sup> and trans-[As<sub>2</sub>Se<sub>4</sub>]<sup>4-</sup>'. Together they form a unique fingerprint.

Cite this