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  • 1
    Electronic Resource
    Electronic Resource
    Synthese und Struktur von AlTaO4 (1983)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 504 (1983), S. 113-116 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Synthesis and Structure of AlTaO4Single crystals of AlTaO4 were prepared between 1310-1360°C and investigated by X-ray single crystal methods. It crystallizes with tetragonal symmetry (a = 460.65; c = 298.5 pm; space group D4h14-P42/mnm). AlTaO4 has got a statistical metal distribution with rutil structure. It shows metastable character in respect to lower temperatures.
    Notes: Einkristalle von AlTaO4 wurden zwischen 1310-1360°C dargestellt und mit röntgenographischen Methoden die Kristallstruktur bestimmt. Diese Verbindung kristallisiert tetragonal mit a = 460,65 und c = 298,5 pm in der Raumgruppe D4h14-P42/mnm. AlTaO4 besitzt eine ungeordnete Metallverteilung mit Rutilstruktur und ist gegenüber tieferen Temperaturbereichen metastabil.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19835040914
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  • 2
    Electronic Resource
    Electronic Resource
    Synthese und Strukturuntersuchung von CoV2O6 (1984)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 508 (1984), S. 7-11 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Synthesis and Structure Determination of CoV2O6The hitherto unknown compound CoV2O6 was prepared by solid state reaction in single crystal form. The X-ray single crystal investigations lead to the space group C23—C2 with a = 9.256, b = 3.508, c = 6.628 Å, β = 111.55°. CoV2O6 is isotypic with ZnV2O6 or β-CdV2O6. It shows an octahedral coordination of Co2+ and constructional units like V2O5.
    Notes: Die bisher unbekannte Verbindung CoV2O6 wurde einkristallin dargestellt und röntgenographisch untersucht. a = 9,256, b = 3,508, c = 6,628 Å, β = 111,55° Raumgruppe C23—C2. CoV2O6 kristallisiert wie ZnV2O6 bzw. β-CdV2O6 mit oktaedrisch koordiniertem Co2+ und Bauelementen aus der Struktur von V2O5.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19845080102
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  • 3
    Electronic Resource
    Electronic Resource
    Synthese und Struktur eines Hochtemperatur-Cobaltarsenats(V): H—Co3(AsO4)2 (1984)
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 517 (1984), S. 161-166 
    Details
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Synthesis and Structure of a High Temperature Cobaltarsenate: H—Co3(AsO4)2Single crystals of the high temperature compound H—Co3(AsO4)4 were prepared at 1800°C with a CO2-Laser technique. X-ray single crystal work shows monoclinic symmetry (space group C2h5-P21/c; a = 6.457, b = 8.510, c = 11.187 Å; ß = 90.73°). In opposition to monoclinic m-CO3(AsO4)2 H—Co3(AsO4)2 has a different coordination of Co2+ including a different connection of the distorted polyhedra. There exists a significant similarity to Cu3(AsO4)2.
    Notes: Mit einer CO2-Laser-Technik wurden bei 1800°C Einkristalle der Hochtemperaturverbindung H—Co3(AsO4)2 dargestellt und röntgenographisch untersucht. H—Co3(AsO4)2 kristallisiert monoklin mit a = 6,457, b = 8,510, c = 11,187 Å, ß = 90,73° (Raumgruppe C2h5 -P21/c). Im Gegensatz zur monoklinen Verbindung m-Co3(AsO4)2 ist H—Co3(AsO4)2 durch starke Veränderungen der Koordinationssphäre um Co2+ ausgezeichnet. Es bestehen größere Ähnlichkeiten zu Cu3(AsO4)2.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
    URL: http://dx.doi.org/10.1002/zaac.19845171015
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