Al-, Nb-, and Ta-based perfluoroaryloxide anions as cocatalysts for metallocene-mediated Ziegler-Natta olefin polymerization

Yimin Sun, Matthew V. Metz, Charlotte L. Stern, Tobin J Marks

Research output: Contribution to journalArticle

54 Citations (Scopus)


Effective cocatalysts need not contain metalloid/metal-carbon bonds and the properties of the resulting metallocenium cation-anion pairs are sensitive to both the counteranion core structure and the metallocene ancillary litigation. The perfluoroaryloxide salts of the formula Ph3C+Al(OC6F5)4- and Ph3C+M(OC6F5)6- (M = Nb, Ta) were synthesized and characterized. In combination with sterically encumbered zirconocene dimethyl complexes, they yield active ethylene polymerization catalysts.

Original languageEnglish
Pages (from-to)1625-1627
Number of pages3
Issue number9
Publication statusPublished - 2000


ASJC Scopus subject areas

  • Inorganic Chemistry
  • Organic Chemistry

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