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  • 1
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Preparation and Structure of Tetrafluoro(η5-pentamethylcyclopentadienyl) Niobium and Tetrafluoro(η5-cyclopentadienyl) NiobiumA facile preparation method for (η5-C5Me5)NbF4 3 and (η5-C5H5)NbF4 4 is reported by using AsF3 as a fluorinating agent. Single crystals obtained from AsF3 contain the solvent molecule as well as HF. The composition of the crystal is [(η5-C5Me5)NbF4(AsF3)2]2 · [(η5-C5Me5)NbF4(HF)AsF3]2 5. The X-ray crystal structure of 5 will be reported. 5 crystallizes triclinic with one furmula in the space group P1 and lattice constants a = 843.1(4), b = 1154.9(6), c = 1910.2(10) pm, α = 91.68(3)°, β = 99.30(3)°, γ = 104.44(2)°.
    Notes: Es wird über eine einfache Darstellung von (η5-C5Me5)NbF4 3 und (η5-C5H5)NbF4 4 durch Chlor-Fluor Austausch mittels AsF3 berichtet. 3 kristallisiert mit AsF3 und HF als [(η5-C5Me5)NbF4(AsF3)2]2 · [(η5-C5Me5)NbF4(HF)AsF3]2 5 aus. Die Einkristall Röntgenstrukturanalyse von 5 wird mitgeteilt. 5 kristallisiert triklin in der Raumgruppe P1 mit den Gitterkonstanten a = 843,1(4), b = 1154,9(6), c = 1910,2(10) pm und α = 91,68(3)°, β = 99,30(3)°, γ = 104,44(2)° mit einer Formeleinheit in der Elementarzelle.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
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