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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 584 (1990), S. 119-124 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: A Contribution about BaLaGaO4 and BaNdGaO4: β-K2SO4 Type Related Compounds and about SrLaGaO4 with K2NiF4 Structure(I) BaLaGaO4, (II) BaNdGaO4, and (III) SrLaGaO4 were prepared by solid state reactions and investigated by X-ray single crystal technique. (I) and (II) crystallize with a β-K2SO4 type related structure. Ba2+ and La3+/Nd3+ occupy two point positions in an ordered manner, Ga3+ shows a tetragonal coordination. SrLaGaO4 has K2NiF4 structure. Sr2+ and La3+ are distributed statistically, Ga3+ is surrounded by O2--octahedra which are stretched along [001].
    Notes: (I) BaLaGaO4, (II) BaNdGaO4 und (III) SrLaGaO4 wurden mit Feststoff-reaktionen dargestellt und mit Röntgenbeugungsmethoden untersucht. (I) und (II) kristallisieren mit einer zu β-K2SO4 verwandten Struktur. Ba2+ und La3+/Nd3+ besetzen zwei Punktlagen geordnet, Ga3+ hat eine tetragonale Koordination. SrLaGaO4 dagegen zeigt K2NiF4-Struktur. Sr2+ und La3+ sind statistisch verteilt, Ga3+ist von O2- -Oktaedern umgeben, die längs [001] gestreckt sind.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
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