Monatshefte für Chemie / Chemical Monthly

, Volume 112, Issue 1, pp 83–89 | Cite as

Na3Fe2S4, ein Thioferrat mit gemischt valenter sk∞/1[FeS2]-Kette

  • Kurt Klepp
  • Herbert Boller
Inorganic and Physical Chemistry

Na3Fe2S4, a thioferrate with mixed valent sk∞/1[FeS2]-chain

Abstract

Na3Fe2S4 has been prepared from Na2S, S and Fe. It crystallizes in space group Pnma,a=6.6333 (5) Å,b=10.675 (1) Å,c=10.677 (2) Å,Z=4. The crystal structure, as determined from single crystal four-circle diffractometer data (R=2.8%), consists of sk∞/1[FeS2]-chains formed by slightly distorted edge sharing [FeS4]-tetrahedra, the iron atoms having a formal valency of +2.5. The sodium ions are approximately octahedrally coordinated. Exposed to air, Na3Fe2S4 readily takes up water to form a hydrate by a pertially topochemical reaction.

Keywords

Chalcogenides Na3Fe2S4 Thioferrates 

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Copyright information

© Springer-Verlag 1981

Authors and Affiliations

  • Kurt Klepp
    • 1
  • Herbert Boller
    • 2
  1. 1.Laboratoire de Cristallographie aux Rayons XUniversité de GenèveSchweiz
  2. 2.Institut für Physikalische ChemieUniversität WienWienÖsterreich

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