Molecular and supported Ti(iii)-alkyls: efficient ethylene polymerization driven by the π-character of metal–carbon bonds and back donation from a singly occupied molecular orbital

Author:

Ashuiev Anton1234,Allouche Florian1234,Wili Nino1234ORCID,Searles Keith1234,Klose Daniel1234,Copéret Christophe1234ORCID,Jeschke Gunnar1234ORCID

Affiliation:

1. Department of Chemistry and Applied Biosciences

2. ETH Zürich

3. CH-8093 Zürich

4. Switzerland

Abstract

Ti(iii) alkyl species polymerize ethylene via an original mechanism, which involves back donation to the π*(C2H4) and a delocalization of the unpaired electron in the transition state of C2H4 insertion into the partially alkylidenic Ti(iii)–C bond.

Funder

Schweizerischer Nationalfonds zur Förderung der Wissenschaftlichen Forschung

Publisher

Royal Society of Chemistry (RSC)

Subject

General Chemistry

Reference63 articles.

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2. G. Natta and F.Danusso , Stereoregular Polymers and Stereospecific Polymerizations , Pergamon Press , Oxford , 1967

3. „Lebende Polymere” bei Ziegler-Katalysatoren extremer Produktivität

4. Reactive cationic dicyclopentadienyl zirconium(IV) complexes

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