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Al-, Nb-, and Ta-Based Perfluoroaryloxide Anions as Cocatalysts for Metallocene-Mediated Ziegler−Natta Olefin Polymerization

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journal contribution
posted on 04.04.2000, 00:00 by Yimin Sun, Matthew V. Metz, Charlotte L. Stern, Tobin J. Marks
Perfluoroaryloxide salts of the formula Ph3C+Al(OC6F5)4- and Ph3C+M(OC6F5)6- (M = Nb, Ta) have been synthesized and characterized. In combination with sterically encumbered zirconocene dimethyl complexes, they yield active ethylene polymerization catalysts.