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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 454 (1979), S. 134-144 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Cobalt(II) Hydrogenarsenate Monohydrate. Preparation and Crystal StructureCo[H2O|HOAsO3] was prepared by heating of As2O5, CoSO4 · 7 H2O and H2O at 150°C in a sealed tube and investigated by X-rays. The compound crystallizes triclinic, space group P¯1 with a = 786.5, b = 1569.9, c = 671.9 pm, α = 94.25, β = 96.89, γ = 90.28° and Z = 8.The structure contains chains of edge-shared CoO6 octahedra connected by AsO4 tetrahedra forming sheets. Two of such somewhat different sheets built up the whole structure. Based on the charge balance derived from the geometrical data and the IR spectra the occurrence of hydrogen bridges is discussed.
    Notes: Co[H2O|HOAsO3] wurde durch Erhitzen von As2O5, CoSO4 · 7 H2O und H2O auf 150°C im Autoklaven dargestellt und röntgenographisch untersucht. Die Verbindung kristallisiert triklin, Raumgruppe P¯1 mit a = 786,5, b = 1569,9, c = 671,9 pm, α = 94,25, β = 96,89, γ = 90,28° und Z = 8. Die Struktur enthält Ketten aus kantenverknüpften CoO6-Oktaedern, welche über AsO4-Tetraeder zu Schichten verknüpft sind. Zwei solche etwas verschiedenartige Schichten bilden die Gesamtstruktur. Anhand der aus den geometrischen Daten berechneten Ladungsbilanz und der IR-Spektren wird das Auftreten von Wasserstoffbrücken diskutiert.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
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