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  Steric control of the chromium-catalyzed oligomerization of ethylene

Döhring, A., Jensen, V. R., Jolly, P. W., Thiel, W., & Weber, J. C. (2001). Steric control of the chromium-catalyzed oligomerization of ethylene. Macromolecular Symposia, 173(1), 117-121. doi:10.1002/1521-3900(200108)173:1<117:AID-MASY117>3.0.CO;2-Y.

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 Creators:
Döhring, Arno1, Author           
Jensen, Vidar R.2, Author           
Jolly, Peter W.1, Author           
Thiel, Walter2, Author           
Weber, Jan C.1, Author
Affiliations:
1Research Department Jolly, Max-Planck-Institut für Kohlenforschung, Max Planck Society, ou_persistent22              
2Research Department Thiel, Max-Planck-Institut für Kohlenforschung, Max Planck Society, ou_1445590              

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 Abstract: Catalysts for the oligomerization and polymerization of ethylene have been obtained by activating phosphinoalkyl-substituted cyclopentadienyl chromium complexes, e.g. (η15-R2PC2H4C5H4)CrCl2, with methylalumoxane (MAO). DFT-calculations indicate that the observed dependence of the degree of oligomerization upon the size of the substituents (R) on the P-donor atom is a result of a steric influence on the stability of the transition state for the chain termination step.

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Language(s): eng - English
 Dates: 2001-09-132001-08
 Publication Status: Published in print
 Pages: 5
 Publishing info: -
 Table of Contents: -
 Rev. Type: Peer
 Degree: -

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Title: Macromolecular Symposia
Source Genre: Journal
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Publ. Info: Weinheim, Fed. Rep. of Germany : WILEY-VCH Verlag GmbH
Pages: 5 Volume / Issue: 173 (1) Sequence Number: - Start / End Page: 117 - 121 Identifier: ISSN: 1022-1360
CoNE: https://pure.mpg.de/cone/journals/resource/954928551327