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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 623 (1997), S. 627-632 
    ISSN: 0044-2313
    Keywords: 2-Hydroxyacetophenoneoxime complex ; nickel complex ; Ni(C8H8NO2)2 ; crystal structure ; Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Kristall-, Molekular- und Elektronenstruktur von Trans-Bis[ethanon,1-(2-hydroxyphenyl)oximato]nickel(II)[Ni(apox)2] (apox = Anion des 2-Hydroxyacetophenonoxims, C8H8NO2-) wurde dargestellt und durch spektroskopische Messungen (IR, 1H NMR, UV-Vis) und theoretische Berechnungen mit der Hückel-Methode untersucht. Die Struktur wurde durch Röntgenstrukturanalyse ermittelt. Elementarzelle: monoklin, Raumgruppe P21/c mit a = 7,845(1), b = 9,911(2), c = 19,371(2)Å, β = 94,37(1)°, Z = 4. Hückel-Rechnungen im Zusammenhang mit dem Elektronenspektrum zeigen, daß die Banden bie 2,73 und 2,62 μm-1 als MLCT und bie 1,62 μm-1 als d-d-Übergang charakterisiert werden können, während die bie 2,14 μm-1 einen gemischten Charakter von MLCT und d-d-Übergang aufweist.
    Notes: The compound [Ni(apox)2], (where apox - denotes the anion of 2-hydroxyacetophenoneoxime, C8H8NO2-), was prepared and studied by means of spectroscopic (IR, 1H NMR, UV-Vis) measurements and theoretical calculations employing the Hückel method. The structure was determined by X-ray diffraction studies. The unit cell is monoclinic (space group P21/c) with dimensions a = 7.845(1), b = 9.911(2), c = 19.371(2) Å, β = 94.37(1)° and contains four formula units. Hückel investigations in comparison with the electronic excitation spectrum revealed that the two bands at 2.73 and 2.62 μm-1 can be characterised as MLCT, the band at 1.62 μm-1 as d-d transition, while the band at 2.14 cm-1 has a mixed character of both MLCT and d-d transition.
    Additional Material: 5 Ill.
    Type of Medium: Electronic Resource
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