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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 617 (1992), S. 27-30 
    ISSN: 0044-2313
    Keywords: Barium ; Gold ; Silver ; Oxide ; Crystal structure ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: On the Oxoargentato(I)-aurat(III): Ba4AgAuO6The hitherto unknown compound Ba4AgAuO6 was prepared by oxidizing Ba/Au/Ag alloy with BaO2/Ba(OH)2 mixture in closed Ag tubes. X-ray single crystal investigation led to orthorhombic symmetry space group D2h17-Cmcm; a = 13.275; b = 5.782; c = 11.396 Å; Z = 4. Ba4AgAuO6 shows distorted pentagonal bipyramidal polyhedra around Ba2+ and square planar AuO4 polygones. Ag+ shows an unusual 2 + 2 coordination by O2-.
    Notes: Die bisher unbekannte Verbindung Ba4AgAuO6 wurde durch Reaktion von Ba/Au/Ag-Legierungen mit einem Gemisch aus BaO2 und Ba(OH)2 in geschlossenen Ag-Röhrchen dargestellt. Die Kristallstruktur wurde röntgenographisch an Einkristallen aufgeklärt. Ba4AgAuO6 kristallisiert orthorhombisch, Raumgruppe D2h17-Cmcm mit a = 13,275; b = 5,782; c = 11,396 Å; Z = 4. Ba2+ ist verzerrt pentagonal bipyramidal; Au3+ quadratisch planar und Ag+ 2 + 2fach von O2--Ionen koordiniert.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
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