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  • 1
    Electronic Resource
    Electronic Resource
    Springer
    Czechoslovak journal of physics 20 (1970), S. 1218-1221 
    ISSN: 1572-9486
    Source: Springer Online Journal Archives 1860-2000
    Topics: Physics
    Type of Medium: Electronic Resource
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  • 2
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 409 (1974), S. 273-284 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Preparation, Magnetic and Spectral Properties of Acetato- and Arylcarboxylatocopper (II) Complexes with antipyrineAcetato- and arylcarboxylatocopper(II) complexes of the type CoX2(Apy) as well as the m-cresotmatocopper(II) complex of the type Cu(m-Cres)2(Apy)2 were prepared (X and Apy see “Inhaltsubersicht”). Their magnetic susceptibilities at various temperatures and their electronic and ESR spectra were measured. The results indicate that the complexes of the type CuX2(Apy) have binuclear bridged structures with exchange interaction between both Cu2+ ions.The complex Cu(m-cres)2(Apy)2 is magnetically dilute and evidently exhibits a distorted octahedral structure. The reasons of the stabilisation of binuclear structures in case of aryl-carboxylatocopper(II) complexes through the coordination of antipyrine molecules were discussed.
    Notes: Acetato- und Arylcarboxylato-kupfer(II)-Komplexe der Zusammensetzung CuX2(Apy) sowie ein m-Kresotinato-kupfer(II)-Komplex der Zusammensetzung Cu(m-Kres)2(Apy)2 wurden dargestellt (X = Acetat-, Benzoat-, Salicylat-, o-, m- oder p-Kresotination; Apy = Antipyrin). Ihre magnetischen Suszeptibilitäten bei verschiedenen Temperaturen und ihre Elektronen- und ESR-Spektren wurden gemessen. Die Ergebnisse zeigen, daß alle Komplexe der Zusammensetzung CuX2(Apy) Zweikernbrückenstrukturen mit einer Austauschwechselwirkung zwischen beiden Cu2+-Ionen bilden. Der Komplex Cu(m-Kres)2(Apy)2 ist magnetisch verdünnt und weist offenbar eine verzerrt oktaedrische Koordination auf. Die Ursachen der Stabilisierung der Zweikernstrukturen bei Arylcarboxylato-kupfer(II)-Komplexen durch die Koordination von Antipyrinmolekeln werden diskutiert.
    Additional Material: 2 Tab.
    Type of Medium: Electronic Resource
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