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  • 1
    Electronic Resource
    Electronic Resource
    Weinheim : Wiley-Blackwell
    Berichte der deutschen chemischen Gesellschaft 110 (1977), S. 3438-3448 
    ISSN: 0009-2940
    Keywords: Chemistry ; Inorganic Chemistry
    Source: Wiley InterScience Backfile Collection 1832-2000
    Topics: Chemistry and Pharmacology
    Description / Table of Contents: Reactions of Coordinated Ligands, IV. Synthesis of Asymmetrically Substituted Bifunctional Phosphine Ligands in the Coordination Sphere of the Phosphido Complex cis-Mo(CO)4(PhPHLi)2Metalation of cis-Mo(CO)4(PhPH2)2 (1) with n-butyl- or methyllithium affords the lithium phenylphosphido complex cis-Mo(CO)4(PhPHLi)2 (1a) which with chlorotrimethylsilane, 1,2-dichloro-1,1,2,2-tetramethyldisilane, bis(cyclopentadienyl)titanium or zirconium dichloride gives the complexes cis-Mo(CO)4(PhPHSiMe3)2 (2) or cis-Mo(CO)4(PhPH)2Z (3-5) (Z = Me2Si—SiMe2, TiCp2, ZrCp2). The corresponding reaction succession starting with 2 or cis-Mo(CO)4(PhPHSiMe2SiMe2PPhH) (3) yields the complexes cis-Mo(CO)4(PhPSiMe3)2Z (6-9) (Z = TiCp2, ZrCp2, Me2Si, Me2Si-SiMe2) and cis-Mo(CO)4PhP(SiMe2—SiMe2)2PhP (10). The structure of these complexes is discussed on the basis of their NMR and IR spectra.
    Notes: Durch Metallierung von cis-Mo(CO)4(PhPH2)2 (1) mit n-Butyl- bzw. Methyllithium erhält man den Lithiumphenylphosphido-Komplex cis-Mo(CO)4(PhPHLi)2 (1a). Dessen Umsetzung mit Chlortrimethylsilan, 1,2-Dichlor-1,1,2,2-tetramethyldisilan, Bis(cyclopentadienyl)titan- bzw. -zirconiumdichlorid liefert die Komplexe Mo(CO)4(PhPHSiMe3)2 (2) bzw. Mo(CO)4(PhPH)2Z (3-5)(Z = Me2Si—SiMe2, TiCp2, ZrCp2). Die analoge Reaktionsfolge liefert ausgehend von 2 bzw. Mo(CO)4(PhPHSiMe2SiMe2PPhH) (3) Komplexe des Typs cis-Mo(CO)4(PhPSiMe3)2Z (6-9) (Z = TiCp2, ZrCp2, Me2Si, Me2Si—SiMe2) und cis-Mo(CO)4PhP(SiMe2SiMe2)2PhP (10). Die Struktur dieser Verbindungen wird auf der Basis ihrer Kernresonanz- und Infrarotspektren diskutiert.
    Additional Material: 4 Tab.
    Type of Medium: Electronic Resource
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