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  • Pentastrontium-trifluoride-{di-μ-fluoro-bis[tetrafluoroferrate(III)]}-hemafluoroferrate(III), Sr5F3[Fe2F10][FeF6]  (1)
  • 1
    ISSN: 0044-2313
    Keywords: Pentastrontium-trifluoride-{di-μ-fluoro-bis[tetrafluoroferrate(III)]}-hemafluoroferrate(III), Sr5F3[Fe2F10][FeF6] ; preparation ; crystal structure ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Dinuclear Anion Groups [Fe2F10]4- in the Crystal Structure of Sr5Fe3F19At single crystals of Sr5Fe3F19 a X-ray structure determination in the tetragonal space group 14/m was performed (a = 1429.4(3), c = 730.7(3) pm; Z = 4. wR = 0.019 for 502 independent reflections). Within the structure there are isolated, but disordered dimeric anion groups of edge-sharing octahedra [Fe2F10]4- (average Fe—F = 193.3 pm, Fe—Fe = 319.1 pm). They are embedded in a framework of strontium ions (C.N. 8-10) and single FeF63- octahedra (Fe—F = 191.0 resp. 192.7 pm, if corrected for thermal motion). The strong relations to the crystal structure of BaTiF5 and to further related fluoride compounds are discussed.
    Notes: An Einkristallen von Sr5Fe3F19 wurde eine röntgenographische Strukturbestimmung in der tetragonalen Raumgruppe 14/m durchgeführt (a = 1429,4(3), c = 730,7(3) pm; Z = 4. wR = 0,019 für 502 unabhängige Reflexe). In der Struktur treten isolierte, aber fehlgeordnete dimere Aniongruppen kantenverknüpfter Oktaeder [Fe2F10]4- auf (Mittelwert Fe—F = 193,3 pm, Fe—Fe = 319,1 pm). Sie sind eingebettet in ein Gerüst von Strontiumionen (KZ 8-10) und FeF63--Einzeloktaedern (Fe—F = 191,0 bzw. 192,7 pm, wenn für die thermische Schwingung korrigiert wird). Die engen Beziehungen zur Kristallstruktur von BaTiF5 und zu weiteren verwandten Fluorverbindungen werden diskutiert.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
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