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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 523 (1985), S. 145-152 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Preparation and Crystal Structure of CsTe4CsTe4 results from a melting reaction at 570°C in sealed quartztubes. The starting materials Cs and Te in the molar ratio 1:4 are produced in a first step by controlled decomposition of the CsN3 from mixtures of CsN3 and Te (1:4) at 350°C.CsTe4 is monoclinic, space group P21/c, with a = 7.857(1) Å, b = 7.286(1) Å, c = 14.155(2) Å, β = 93.83(1)°, and Z = 4. The tellurium atoms form a two-dimensional puckered layer built of from pseudo-trigonal-bipyramidal, T-shaped units Te4-. The central tellurium atom of this unit may be considered as a pseudo iodine. The compound is compared with other tellurides MTen having some like that unexpected principles of connection.
    Notes: CsTe4 entsteht aus Gemengen von Caesium und Tellur im Molverhältnis 1:4, wenn man diese in abgeschlossenen Ampullen einer Schmelzreaktion bei 570°C unterwirft. Die Elementgemenge stellt man der, indem man CsN3 und Te (1:4) zusammengibt und anschließend durch kontrollierte Zersetzung des Azids den Stickstoff vertreibt.CsTe4 kristallisiert monoklin in der Raumgruppe P21/c (Z = 4) mit den Gitterkonstanten a = 7,857(1) Å, b = 7,286(1) Å, c = 14,155(2) Å, β = 93,83(1)°. In der Strukture liegt ein zweidimensional-unendliches Polyanion ∞2[Te4-] vor. Die Verwandtschaft mit anderen tellurriechen Telluriden MTen wird diskutiert.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
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