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  • 1
    ISSN: 0044-2313
    Keywords: Indium digermanate ; indium disilicate ; crystal structure ; indium luminescence ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Strukturuntersuchungen und Lumineszenz von In2Ge2O7 und In2Si2O7Eine Rietveld-Pulverdiagramm-Methode erlaubt die Bestimmung der genauen Strukturen von Thortveitit verwandten In2Ge2O7 und In2Si2O7 Oxyden (Raumgrupe C2/m, Z = 2). Die Verbindungen wurden unter normalem Druck hergestellt. Die Lumineszenz unter 160 und 200 K sollte die Messung der Umwelt Neutrinobestrahlung erlauben. Sie scheint die Folge eines inneren Ladungstransfers in den Indium Sauerstoff Polyedern zu sein. Die optischen Resultate wurden an Hand der bestimmten Strukturen und der chemischen Bindungen diskutiert und mit Werten für andere Indiumoxyde verglichen.
    Notes: The crystal structures of the ordinary pressure forms of indium digermanate In2Ge2O7 and disilicate In2Si2O7 have been studied from X-ray powder diffraction data by Rietveld refinement. They are closely related to that of the thortveitite which crystallizes in the monoclinic system with the space group C2/m and Z = 2. They show luminescence properties below 160 K and 200 K respectively. The luminescence is discussed in terms of crystal structure and compared to that of some other luminescent indium oxides.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
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