Well-Defined Cationic Methallyl α-Keto-β-Diimine Complexes of Nickel

Authors

  • Jason D. Azoulay,

    1. Mitsubishi Chemical Center for Advanced Materials, Center for Polymers and Organic Solids, Departments of Chemistry & Biochemistry and Materials, The University of California, Santa Barbara, CA 93106 (USA), Fax: (+1) 805-893-4120
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  • Zachary A. Koretz,

    1. Mitsubishi Chemical Center for Advanced Materials, Center for Polymers and Organic Solids, Departments of Chemistry & Biochemistry and Materials, The University of California, Santa Barbara, CA 93106 (USA), Fax: (+1) 805-893-4120
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  • Guang Wu,

    1. Mitsubishi Chemical Center for Advanced Materials, Center for Polymers and Organic Solids, Departments of Chemistry & Biochemistry and Materials, The University of California, Santa Barbara, CA 93106 (USA), Fax: (+1) 805-893-4120
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  • Prof. Dr. Guillermo C. Bazan

    1. Mitsubishi Chemical Center for Advanced Materials, Center for Polymers and Organic Solids, Departments of Chemistry & Biochemistry and Materials, The University of California, Santa Barbara, CA 93106 (USA), Fax: (+1) 805-893-4120
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  • We are grateful to the Department of Energy BES and the Mitsubishi Chemical Center for Advanced Materials for support of this research.

Abstract

original image

Komplexe Betrachtungen: Die Synthese und Charakterisierung eines diskreten kationischen Nickel-Methallyl-Komplexes (siehe Struktur: Ni grün, N blau, O rot) erbrachte Aufschluss über die Natur der propagierenden Zentren in α-Keto-β-diimin-Nickel-Komplexen als Olefinpolymerisationskatalysatoren. Die Zugabe von Al(C6F5)3 zum Reaktionssystem führte zu einer Carbonylkoordination an das Aluminiumzentrum, der weiteren Absenkung der Elektronendichte am Nickelzentrum und einem beträchtlichen Anstieg der Reaktivität mit Ethylen.

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