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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 355 (1967), S. 1-11 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: In the systems ZnO—Nb2O5 and ZnO—Ta2O5 the phases Zn3Nb2O8 (I) and Zn3Ta2O8 (II) exist. Substituting some Zn in (II) by Co, Ni or Cu the structure changes from (II) to that of (I).The light absorption of Co2+, Ni2+, Cu2+ in these phases is investigated. Therefrom it is deduced that the bivalent cations in (II) occupy octahedral and tetrahedral sites, but in (I) only octahedral ones.
    Notes: In den Systemen ZnO—Nb2O5 und ZnO—Ta2O5 existieren die Phasen Zn3Nb2O8 (I) und Zn3Ta2O8 (II). Ersetzt man in (II) größere Mengen Zn durch Co, Ni oder Cu, so geht die Struktur von (II) in die von (I) über.Die Lichtabsorption von Co2+, Ni2+ und Cu2+ in diesen Phasen wird untersucht. Daraus ergibt sich, daß die zweiwertigen Kationen in (II) Oktaeder- und Tetraederlücken besetzen, in (I) jedoch nur Oktaederlücken.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
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