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Monatshefte für Chemie / Chemical Monthly

, Volume 118, Issue 8–9, pp 967–972 | Cite as

Characterization of TlCu7S4, a crookesite analogue

Short communication
  • Rolf A. Berger
  • Robert J. Sobott
Anorganische Und Physikalische Chemie

Abstract

Previous claims of a compound TlCu9S5 are rejected. The true composition is TlCu7S4, the compound being isostructural with NH4Cu7S4 and TlCu7Se4 (crookesite). The body-centred tetragonal cell (a=10.1797 Å andc=3.8585 Å) contains two formula units.

Keywords

Thallium copper sulphide Crystal structure 

Beschreibung von TlCu7S4, einer dem Crookesit analogen Verbindung (Kurze Mitteilung)

Zusammenfassung

Frühere Feststellungen, daß im pseudobinären System Tl2S-Cu2S eine Verbindung TlCu9S5 existiert, erwiesen sich als unzutreffend. Die korrekte Formel muß TlCu7S4 lauten. TlCu7S4 besitzt eine raumzentrierte tetragonale Elementarzelle (a=10.1797 Å,c=3.8585 Å;Z=2) und ist isostrukturell mit NH4Cu7S4 und TlCu7Se4 (Crookesit).

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Copyright information

© Springer-Verlag 1987

Authors and Affiliations

  • Rolf A. Berger
    • 1
  • Robert J. Sobott
    • 2
  1. 1.Institute of ChemistryUniversity of UppsalaUppsalaSweden
  2. 2.Institute of Mineralogy-PetrographyUniversity of HeidelbergHeidelbergFederal Republic of Germany

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