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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Zeitschrift für anorganische Chemie 450 (1979), S. 183-186 
    ISSN: 0044-2313
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Die Lichtabsorption des 3wertigen Chroms in zwei Wirtsgittern vom Pyroxen- und Spinell-TypEs wurde die Lichtabsorption des Cr3+-haltigen Diopside CaMgSi2O6 und Spinells ZnGaAlO4 spektralphotometrisch gemessen. Zwei Absorptionsbanden wurden nach den Elektronenübergängen erhalten: 4A2g → 4T2g (niedriges Frequenzband) und 4A2g → 4T1g (hohes Frequenzband). Generell zeigten die Werte des Ligandenfeldparameters Δ und B, daß die Cr—O-Bindung in den zwei untersuchten Strukturen von unterschiedlichem Charakter ist.
    Notes: The light absorption of Cr3+ - doped diopside CaMgSi2O6 and spinel ZnGaAlO4 was measured spectrophotometrically. Two absorption bands corresponding to the electron transition: 4A2g → 4T2g (low frequency band) and 4A2g → 4T1g (high frequency band) were obtained. Generally, the value of the estimated ligand field parameters Δ and B showed that the Cr—O bond in the studied two structures is of different character.
    Additional Material: 2 Ill.
    Type of Medium: Electronic Resource
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