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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 620 (1994), S. 879-881 
    ISSN: 0044-2313
    Keywords: Strontium peroxide ; crystal structure ; composition ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Refinement of the Crystal Structure of SrO2Single crystals of SrO2 have been obtained after high pressure/high temperature reaction of a SrO/KClO3 mixture at 20 kbar, 1 400°C. The crystal structure was refined using 154 unique diffractometer data (I4/mmm; a = 3.5626(3), c = 6.6159(6) Å; Z = 2; R = 0.033, Rw = 0.022, S = 0.932). The O—O distance (1.493(4) Å) is significantly longer than the one previously assumed. From a refinement of the site occupation factor for oxygen a composition SrO1.95(2) has been found for the crystal investigated.
    Notes: Einkristalle von SrO2 wurden durch Hochdruck-Hochtemperatur-Reaktion eines SrO—KClO3-Gemisches bei 20 kbar, 1 400°C erhalten. Die Kristallstruktur wurde auf der Basis von Vierkreisdiffraktometerdaten (154 unabhängige Strukturfaktoren) verfeinert (I4/mmm; a = 3,5626(3), c = 6,6159(6) Å; Z = 2; R = 0,033, Rw = 0,022, S = 0,932). Der gefundene O—O-Abstand ist mit 1,493(4) Å deutlich größer als bisher angenommen. Eine Verfeinerung des Besetzungsfaktors von Sauerstoff ergab für den untersuchten Kristall eine Zusammensetzung SrO1,95(2).
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
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