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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 572 (1989), S. 175-180 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: About a Mixed-Valence-Oxochromate(III, IV): Sr4Cr3O9Single crystals of the hitherto unknown compound Sr4Cr3O9 were prepared and examined by four circle diffractometer technique (space group C31-P3, a = 9.6182; c = 7.8736 Å, Z = 3). The point positions of chromium are occupied statistically by Cr3+ and Cr4+. The Cr3+/Cr4+-coordination is partly unusual, there are one dimensional chains of CrO6-polyhedra incorporated in a [Sr4O9]10--network.
    Notes: Die bisher unbekannte Verbindung, Sr4Cr3O9, wurde einkristallin dargestellt und mit Vierkreisdiffraktometermessungen untersucht (Raumgruppe C31-P3, a = 9,6182; c = 7,8736 Å, Z = 3). Cr3+ und Cr4+ besetzen die Positionen statistisch. Die Koordination von Cr3+/Cr4+ ist teilweise ungewöhnlich, in einem [Sr4O9]10--Gerüst sind eindimensionale CrO6-Polyederstränge eingelagert.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
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