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Structures and Properties of Nonchelated, d0 Alkyl Alkene Complexes of the Type [Cp2ZrMe(alkene)]+: Elusive Intermediates during Ziegler–Natta Polymerizations of Alkenes

✍ Scribed by Francoise Sauriol; Elizabeth Wong; Angela M. H. Leung; Irja Elliott Donaghue; Michael C. Baird; Tebikie Wondimagegn; Tom Ziegler

Publisher: John Wiley and Sons
Year: 2009
Tongue: English
Weight: 282 KB
Volume: 48
Category: Article
ISSN: 0044-8249
DOI: 10.1002/anie.200900379

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✦ Synopsis

Abstract

Caught in the act: An alkyl alkene Zr^IV^ complex (see picture; Cp=C~5~H~5~) has been synthesized and characterized for the first time. The alkene bonding mode is highly asymmetric, and C2 is quite carbocationic. There is also evidence for rotation about the C1C2 bond. This extremely unusual complex provides an exemplar of previously unknown intermediates in Ziegler–Natta and carbocationic polymerization reactions of alkenes.magnified image

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Structures and Properties of Nonchelated

Structures and Properties of Nonchelated, d0 Alkyl Alkene Complexes of the Type [Cp2ZrMe(alkene)]+: Elusive Intermediates during Ziegler–Natta Polymerizations of Alkenes

✍ Francoise Sauriol; Elizabeth Wong; Angela M. H. Leung; Irja Elliott Donaghue; Mi 📂 Article 📅 2009 🏛 John Wiley and Sons 🌐 English ⚖ 282 KB