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  • Electronic Resource  (1)
  • 1970-1974  (1)
  • Inorganic Chemistry  (1)
  • EcartMethod
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  • Electronic Resource  (1)
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  • Inorganic Chemistry  (1)
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    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 382 (1971), S. 40-48 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: The ternary compound Li2ZnSi was prepared by heating a mixture of the elements in a Ta crucible in an argon atmosphere at 770°C. It is a bluish grey powder with a metallic luster hydrolyzing in moisture. The x-ray investigation with a single-crystal results in hexagonal symmetry with the lattice constants a = 4.247 Å, c = 8.224 Å, c/a = 1.936 and Z = 2. The structure of Li2ZnSi is related to the Na3As-type structure (DO18, space group P63/mmc): The Si has a hexagonal close packed arrangement; Li (in tetrahedral interstices) and Zn (in triangles of Si) occupy the positions of Na. A distortion of the Zn positions gives a superstructure along [001]
    Notes: Die ternäre Verbindung Li2ZnSi ließ sich durch Umsetzung der Elemente im Tantaltiegel unter Argon bei 770°C als blaugraues, metallisch glänzendes, hydrolyseempfindliches Sinterprodukt darstellen. Einkristalluntersuchungen ergaben hexagonale Symmetrie mit den Gitterkonstanten a = 4,247 Å, c = 8,224 Å und c/a = 1,936 bei zwei Formeleinheiten in der Elementarzelle. Die Struktur des Li2ZnSi leitet sich vom Na3As-Typ (DO18, Raumgruppe P63/mmc) ab: Bei hexagonal dichter Anordnung des Si besetzen Li (in den Tetraederlücken) und Zn (in den Dreieckslücken) die Punktlaugen des Na. Eine Auslenkung des Zinks aus der Ideallage bewirkt eine Überstruktur in Richtung [001].
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
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