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Synthesis, Electronic Structure, and Ethylene Polymerization Activity of Bis(imino)pyridine Cobalt Alkyl Cations

✍ Scribed by Crisita Carmen Hojilla Atienza; Dr. Carsten Milsmann; Dr. Emil Lobkovsky; Prof. Paul J. Chirik

Publisher
John Wiley and Sons
Year
2011
Tongue
English
Weight
511 KB
Volume
50
Category
Article
ISSN
0044-8249

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✦ Synopsis

A new spin on polymers: the title cations comprise low-spin Co(II) centers with neutral bis(imino)pyridine chelating ligands. These complexes serve as single-component ethylene polymerization catalysts and offer insight into the mechanism of chain growth and catalyst deactivation, which occurs by forming inactive cationic bis(imino)pyridine cobalt complexes with a diethyl ether ligand.

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Innentitelbild: Synthesis, Electronic St
Innentitelbild: Synthesis, Electronic Structure, and Ethylene Polymerization Activity of Bis(imino)pyridine Cobalt Alkyl Cations (Angew. Chem. 35/2011)
✍ Crisita Carmen Hojilla Atienza; Dr. Carsten Milsmann; Dr. Emil Lobkovsky; Prof. 📂 Article 📅 2011 🏛 John Wiley and Sons 🌐 English ⚖ 806 KB

Die Streitfrage um die Art der aktiven Spezies bei der durch Bis(imino)pyridincobalt-Verbindungen katalysierten Ethylenpolymerisation wurde von P. J. Chirik et al. beantwortet. In der Zuschrift auf S. 8293 ff. berichten sie über die Synthese und Charakterisierung einer Familie von Alkylkationen, die

Inside Cover: Synthesis, Electronic Stru
Inside Cover: Synthesis, Electronic Structure, and Ethylene Polymerization Activity of Bis(imino)pyridine Cobalt Alkyl Cations (Angew. Chem. Int. Ed. 35/2011)
✍ Crisita Carmen Hojilla Atienza; Dr. Carsten Milsmann; Dr. Emil Lobkovsky; Prof. 📂 Article 📅 2011 🏛 John Wiley and Sons 🌐 English ⚖ 873 KB

The controversy … … surrounding the nature of the active species in ethylene polymerization catalyzed by bis(imino)pyridine cobalt compounds has been resolved by P. J. Chirik et al. In their Communication on page 8143 ff., they report the synthesis and characterization of a family of alkyl cations,