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  • 1
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Metal-π-Complexes of Benzene Derivatives, XV. Bis(η6-naphthalene)chromium(0): X-Ray Structure Determination and Investigation by Nuclear Magnetic Resonance SpectroscopyBis(η6-naphthalene)chromium(0) (2) crystallizes in the space group P21/n with two molecules in the unit cell. The ligands in individual molecules of 2 are syn-oriented. The implied presence of a center of symmetry in 2 is caused by disorder that consists in the statistical occupation by chromium atoms of two equivalent sites between the six membered ring of pairs of parallel naphthalene ligands. The 1H and 13C NMR spectra of 2 are analysed and the spectroscopic parameters are discussed with reference to the respective data of free naphthalene as well as other (η-naphthalene)metal complexes.
    Notes: Bis(η6-naphthalin)chrom(0) (2) kristallisiert in der Raumgruppe P21/n mit zwei Molekülen in der Elementarzelle. Die Liganden in individuellen Molekülen von 2 nehmen dabei eine syn-Anordnung ein. Das Vorliegen eines Symmetriezentrums in 2 wird durch eine Fehlordnung vorgetäuscht, die darin besteht, daß in Paaren parallel angeordneter Naphthalin-Liganden linke und rechte Lücken zwischen den Sechsringen statistisch mit Chromatomen besetzt sind. Die 1H- und 13C-NMR-Spektren von 2 werden analysiert, und die spektroskopischen Parameter werden im Vergleich mit entsprechenden Daten des freien Naphthalins sowie anderer (η-Naphthalin)metall-Komplexe diskutiert.
    Additional Material: 7 Ill.
    Type of Medium: Electronic Resource
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