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  • 1
    ISSN: 0044-2313
    Keywords: Copper, rare earth, tungsten, oxide ; crystal structure ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: The Crystal Chemistry of Copper Rare-Earth Oxotungstates: (I): triclinic-α-CuTbW2O8, (II): monoclinic-CuInW2O8 and (III): monoclinic-CuYW2O8Single crystals of (I), (II) and (III) were prepared by recrystallisation in closed systems and examined by X-ray technique. (I): space group Cil—P1, a = 7.3080, b = 7.8945, c = 7.1476 Å, α = 115.23, β = 116.21, γ = 56.98°, Z = 2; (II): space group C2h6—C2/c, a = 9.6576, b = 11.6496, c = 4.9863 Å, β = 91.17°, Z = 4; (III): space group C2h4—P2/n, a = 10.0504, b = 5.8214, c = 5.0224 Å, β = 94.23°, Z = 2. The crystal structures are discussed with respect to calculations of the coulombterms of lattice energy and possible valence states of Cu2+ and Mo5+.
    Notes: Einkristalle von (I), (II) und (III) wurden durch Rekristallisation in geschlossenen Systemen dargestellt und röntgenographisch untersucht. Die kristallographischen Daten lauten: (I): Raumgruppe Cil—P1, a = 7,3080, b = 7,8945, c = 7,1476 Å, α = 115,23, β = 116,21, γ = 56,98°, Z = 2; (II): Raumgruppe C2h6—C2/c, a = 9,6576, b = 11,6496, c = 4,9863 Å, β = 91,17°, Z = 4; (III): Raumgruppe C2h4—P2/n, a = 10,0504, b = 5,8214, c = 5,0224 Å, β = 94,23°, Z = 2. Die Kristallstrukturen werden mit Blick auf Berechnungen der Coulombterme der Gitterenergie und mögliche Ladungen von Cu2+ und Mo5+ diskutiert.
    Additional Material: 3 Ill.
    Type of Medium: Electronic Resource
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