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Ternäre Erdalkali-und Seltene Erdmetall-Silicide und-Germanide mit ThCr2Si2-Struktur

Ternary alkaline and rare earth silicides and germanides with ThCr2Si2 structure

  • Anorganische, Struktur- und Physikalische Chemie
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Monatshefte für Chemie / Chemical Monthly Aims and scope Submit manuscript

Zusammenfassung

Es wurden 53 neue Verbindungen mit der ZusammensetzungRM 2 B IV2 hergestellt, wobeiR ein Selten-Erdelement, Ca oder Sr bedeutet,M eines der Elemente: Cr, Fe, Co, Ni oder Cu ist undB IV entweder Si oder Ge bezeichnet. Alle Verbindungen kristallisieren im tetragonalen ThCr2Si2-(oder CeAl2Ga2-) Strukturtyp. Der letztere stellt eine geordnete ternäre Variante des BaAl4-Typs dar, bei dem die zwei ungleichwertigen Al-Punktlagen mit verschiedenartigen Atomen besetzt sind.

Abstract

Fifty three new compounds of compositionRM 2 B IV2 were synthesized whereR is a rare earth element or Ca and Sr,M is Cr, Fe, Co, Ni or Cu andB IV either Si or Ge. All these compounds crystallize in the tetragonal ThCr2Si2 (or CeAl2Ga2) type which is an ordered ternary version of the BaAl4 type, the two nonequivalent sites of the Al atoms being occupied by different kinds of atoms.

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Author notes

  1. Wolfhart Rieger

    Present address: Lonza A. G. in Sins, CH-5643, Schweiz

Authors and Affiliations

  1. School of Metallurgy and Materials Science, and Laboratory for Research on the Structure of Matter, University of Pennsylvania, Philadelphia, USA

    Wolfhart Rieger & Erwin Parthé

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  1. Wolfhart Rieger
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  2. Erwin Parthé
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Rieger, W., Parthé, E. Ternäre Erdalkali-und Seltene Erdmetall-Silicide und-Germanide mit ThCr2Si2-Struktur. Monatshefte für Chemie 100, 444–454 (1969). https://doi.org/10.1007/BF00904086

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  • DOI: https://doi.org/10.1007/BF00904086

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