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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: Acetylene Complexes of Molybdenocene: Synthesis via Ligand Substitution Reactions of Bis(η5-cyclopentadienyl)[(Z)-stilbene]molybdenum, a Molybdenocene Derivative with Substitution-labile OlefinThe reinvestigation of the reaction of molybdenocene dihydride, Mo(C5H5)2H2 (1), with diphenylacetylene led to the isolation and characterization of the (Z)-stilbene complex of molybdenocene, Mo(C5H5)2[(Z)-C6H5CH=CHC6H5] (3). The olefin ligand in this complex is found to be rather labile and substitution reactions with various substituted acetylenes RC≡CR′ readily gave the acetylene complexes of molybdenocene, Mo(C5H5)2(RC≡CR′) (2f-cm). The effect of the acetylene substituents R and R′ in these compounds is discussed in terms of their electronic properties.
    Notes: Bei der Wiederholung der Reaktion von Molybdänocendihydrid, Mo(C5H5)2H2 (1), mit Diphenylacetylen konnte das (Z)-Stilben-Addukt des Molybdänocens, Mo(C5H5)2[(Z)-C6H5CH=CHC6H5] (3), isoliert und charakterisiert werden. Der olefinische Ligand in 3 erweist sich als substitutionslabil: Verschiedene substituierte Acetylene RC≡CR′ reagieren mit 3 glatt zu den Acetylen-Komplexen 2f-m des Molybdänocens, Mo(C5H5)2(RC≡CR′). Der Einfluß der Acetylensubstituenten R und R′ in dieser Verbindungsklasse wird im Hinblick auf ihre elektronischen Eigenschaften untersucht.
    Additional Material: 1 Ill.
    Type of Medium: Electronic Resource
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