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

doi:10.1021/om990946l

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

Northwestern University

Research output: Contribution to journal › Article › peer-review

56 Citations (Scopus)

Abstract

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 language	English
Pages (from-to)	1625-1627
Number of pages	3
Journal	Organometallics
Volume	19
Issue number	9
DOIs	https://doi.org/10.1021/om990946l
Publication status	Published - 2000

ASJC Scopus subject areas

Physical and Theoretical Chemistry
Organic Chemistry
Inorganic Chemistry

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abstract = "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.",

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T1 - Al-, Nb-, and Ta-based perfluoroaryloxide anions as cocatalysts for metallocene-mediated Ziegler-Natta olefin polymerization

AU - Sun, Yimin

AU - Metz, Matthew V.

AU - Stern, Charlotte L.

AU - Marks, Tobin J.

PY - 2000

Y1 - 2000

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AB - 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.

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