Synthesis, Structural Characterization, and Reaction of the First Terminal Hydroxide-Containing Alumoxane with an [{Al(OH)}2(μ-O)] Core


  • This work was supported by the Deutsche Forschungsgemeinschaft and the Fonds der Chemischen Industrie.


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Towards new polymerization-catalyst activators: A new synthetic approach is described for the hitherto unknown [{LAl(OH)}2(μ-O)]⋅0.5 (C7H8)⋅C6H14 species (1; L=HC[(CMe)(2,6-iPr2C6H3N)]2). Further reaction of the Brönsted acidic OH groups of 1 with Me2AlH results in the formation of trimeric alumoxane containing a three coordinate Al center [(LAl)2(MeAl)(μ-O)3]⋅2 C7H8, the core of which is depicted. These compounds may have use as activators for olefin-polymerization catalysts.