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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 619 (1993), S. 123-127 
    ISSN: 0044-2313
    Keywords: Potassium ; Calcium ; Barium ; Copper ; Vanadium Oxide ; Structure ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: A new Alkaline-Alkaline-Earth-Copper-Oxovanadate: Kba3Ca4Cu3V7O28.Single crystals of Kba3Ca4Cu3V7O28 were prepared by solid state reactions below the melting point of the reaction mixture. It crystallizes with hexagonal symmetry, space group C6v4-P63mc, a=11.160, c=12.428 Å, Z=2. Kba3Ca4Cu3V7O28 represents a new structure type with special coordination polyhedra around Ba2+, trigonal prisms and octahedra around Ca2+ and Cu2+ inside square pyramids. The crystal structure will be shown and discussed.
    Notes: Einkristalle von Kba3Ca4Cu3V7O28 wurden durch Feststoffreaktionen, knapp unterhalb des Schmelzpunktes, erhalten. Die Verbindung kristallisiert hexagonal, Raumgruppe C6v4-P63mc, a=11,160, c=12,428 Å, Z=2. Kba3Ca4Cu3V7O28 repräsentiert einen neuen Strukturtyp, mit speziellen Koordinationspolyedern um Ba2+, trigonalen Prismen und Oktaedern um Ca2+ und Cu2+ in tetragonal pyramidaler Koordination. Die Kristallstruktur wird vorgestellt und diskutiert.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
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