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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 623 (1997), S. 439-443 
    ISSN: 0044-2313
    Keywords: Barium ; molybdenum oxyfluoride ; crystal structure ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Synthese und Kristallstruktur von Ba4Mo2O5F7(HF2)3 · H2OEinkristalle von Ba4Mo2O5F7(HF2)3 · H2O wurden durch hydrothermale Synthese erhalten. Die Röntgenstrukturbestimmung ergab: Raumgruppe Pnnm, Z = 4, a = 16,497(1), b = 8,6939(5), c = 11,5174(6) Å (R = 0,0295, Rw = 0,0354 für 2425 unabhängige Reflexe und 126 Parameter). Mo ist im MoO3F3 verzerrt oktaedrisch umgeben. Zwei Oktaeder bilden, übereck verbunden durch O2-, (Mo2O5F6)4--Einheiten entlang der c-Achse. Die Ba-Atome liegen in zwei unterschiedlichen Umgebungen vor: einem quasi dreifach bekappten Kubus für Ba1 und Ba3 und einem dreifach bekappten trigonalen Prisma für Ba2.
    Notes: Single crystals of Ba4Mo2O5F7(HF2)3 · H2O are grown by hydrothermal synthesis. The structure is determined from X-Ray diffraction data: space group Pnnm, Z = 4, a = 16.497(1) Å, b = 8.6939(5) Å, c = 11.5174(6) Å (R = 0.0295, Rw = 0.0354 for 2425 independent reflections and 126 adjustable parameters). Mo atoms are in a distorted octahedral environment MoO3F3; two octahedra are linked by one O2- corner forming (Mo2O5F6)4- units lying along the c axis. Ba atoms present two kinds of environment: a quasi tricapped cube for Ba1 and Ba3 and a tricapped tricapped trigonal prism for Ba2.
    Additional Material: 6 Ill.
    Type of Medium: Electronic Resource
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