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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 622 (1996), S. 1788-1792 
    ISSN: 0044-2313
    Keywords: M3Fe2(SeO3)6 (M = Ca, Sr) ; crystal structure ; crystal chemistry ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Synthesen und Kristallstrukturen von Ca3Fe2(SeO3)6 und Sr3Fe2(SeO3)6Die neuen Verbindungen M3Fe2(SeO3)6 (M = Ca, Sr) wurden als kristalline Niederschläge aus wäßrigen Lösungen der jeweiligen Ionen erhalten, die in Teflon-beschichteten Behältern für mehrere Tage auf eine Temperatur von 227(2)°C erhitzt wurden.Die kristallographischen Daten sind: Raumgruppe R3c, a = 8,531(2), 8,802(2) Å; c = 38,89(1), 39,00(1) Å; V = 2451,1, 2616,7 Å3, Z = 6. Die Kristallstrukturen wurden aus Einkristallröntgenbeugungsdaten bestimmt und zu R-Werten von R1 = 0,021, 0,023; wR2 = 0,038, 0,039 verfeinert. Die Gerüststruktur besteht aus zwei Arten von FeO6 Oktaedern sowie aus MO8 Gruppen und SeO3 trigonalen Pyramiden, die über gemeinsame Ecken und Kanten verbunden sind.
    Notes: The new compounds M3Fe2(SeO3)6 (M = Ca, Sr) were obtained as crystalline precipitates from aqueous solutions of the respective ions, kept in Teflon-coated vessels at a temperature of 227(2)°C for several days.The crystal data are: space group R3c, a = 8.531(2), 8.802(2) Å; c = 38.89(1), 39.00(1) Å; V = 2451.1, 2616.7 Å3, Z = 6. The crystal structures have been refined by single-crystal X-ray diffraction methods to R1 = 0.021, 0.023; wR2 = 0.038, 0.039. The framework structure is built up by two types of FeO6 octahedra as well as by MO8 groups and SeO3 trigonal pyramids by corner- and edge-linkage of the polyhedra.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
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