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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 620 (1994), S. 1051-1055 
    ISSN: 0044-2313
    Keywords: Copper cobalt borate oxide, Cu2Co(B2O5)O ; crystal structure ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: On a New Copper Cobalt Borate Oxide with Isolated B2O5 Units: Cu2Co(B2O5)OSingle crystals of a new compound with the empirical formula Cu2CoB2O6 were obtained by using a B2O3 flux technique. X-ray single crystal technique led to a new structure type. Cu2CoB2O6 crystallizes monoclinic, space group C2h5-P21/c (No. 14); a = 3.2250(6); b = 14.847(1); c = 9.1171(6) Å; β = 93.67°; Z = 4. All metal sites are octahedrally coordinated and form a two dimensional framework consisting of edge sharing octahedra ribbons. In addition one observes isolated B2O5-units and oxygen which is not coordinated to boron. The far relation to the crystal structure of the mineral Warwickite is illustrated.
    Notes: Unter Verwendung einer B2O3-Schmelze gelang die Synthese von Einkristallen einer Substanz mit der Summenformel Cu2CoB2O6, die einen eigenständigen, neuartigen Strukturtyp bildet. Sie kristallisiert in der Raumgruppe C2h5-P21/c (No. 14), a = 3,2250(6); b = 14,847(1); c = 9,1171(6) Å; β = 93,67(2)°; Z = 4. Die Metallkationen sind verzerrt oktaedrisch koordiniert und bilden durch Kantenverknüpfungen der Polyeder in zwei Richtungen ein Netzwerk aus Oktaederbändern. Die Struktur weist isolierte B2O5-Baugruppen auf und zudem Sauerstoff, der nicht an Bor gebunden ist. Eine entfernte Verwandtschaft zur Kristallstruktur des Minerals Warwickit wird aufgezeigt.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
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