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- W2024884679 abstract "Cp2Zr(-NCHR)Cl compounds (9a–9c: R = CH3, C6H5, CH2Ph,respectively) are formed upon hydrozirconation of nitriles. Subsequent reaction with an aryllithium reagent yields Cp2Zr(-NCHR)Ar (14). The (alkylidene amido)zirconocene complexes are characterized by a linear heteroallene-type structure possessing an sp-hybridized nitrogen atom. 9 reacts with the oligomeric metallocene dihydrides (Cp2ZrH2)x (15) and (Cp2HfH2)c, (17), respectively, to form the binuclear compounds Cp2Zr(μ-NCHR)(μ-Cl)MCp2 (16, M = Zr) and (18, M = Hf). The formation of these thermally very stable metal complexes is discussed. Die Hydrozirconierung von Nitrilen liefert die Verbindungen Cp2Zr(-NCHR)Cl (9a–9c) (R = CH3, C6H5, CH2Ph). Anschliessende Umsetzung mit einem Aryllithium-Reagenz führt zur Bildung von Cp2Zr(-NCHR)Ar (14). Für die (Alkylidenamido)zirconocen-Komplexe ist eine lineare Heteroallen-Struktur mit sp-hybridischem Stickstoff anzunehmen. Mit den oligomeren Metallocendihydriden (Cp2ZrH2)x (15) bzw. (Cp2HfH2)c (17) reagiert 9 unter Bildung der zweikernigen Verbindungen Cp2Zr(μ-NCHR)(μ-Cl)MCp2 (16, M = Zr) und (18, M = Hf). Die Bildungsweise dieser thermisch sehr stabilen Metallkomplexe wird diskutiert." @default.
- W2024884679 created "2016-06-24" @default.
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- W2024884679 date "1985-02-01" @default.
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- W2024884679 title "Hydrozirconierung von nitrilen: Die bildung ein- und zweikerniger (alkylidenamido)zirconocen-komplexe" @default.
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- W2024884679 doi "https://doi.org/10.1016/0022-328x(85)88111-0" @default.
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