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Reactive Intermediates Formed During Olefin Polymerization by Methylalumoxane-Activated ansa-Zirconocene Catalysts : Identification of a Chain-Carrying Intermediate by NMR Methods

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JACS_2010_132_452_Brintzinger_Babushkin.pdf
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2010

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Babushkin, Dmitrii E.

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http://nbn-resolving.de/urn:nbn:de:bsz:352-opus-127095
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https://doi.org/10.1021/ja909157r
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Journal of the American Chemical Society : JACS. 2010, 132(2), pp. 452-453. ISSN 0002-7863. eISSN 1520-5126. Available under: doi: 10.1021/ja909157r

Zusammenfassung

Addition of 1-hexene to methylalumoxane-activated catalyst systems based on rac-Me(2)Si(ind)(2)ZrMe(2) causes, concurrent with polyhexene formation and diminution of the otherwise prevalent cation rac-Me(2)Si(ind)(2)Zr(mu-Me)(2)AlMe(2), formation of a hitherto unobserved species rac-Me(2)Si(ind)(2)Zr(mu-R)(mu-Me)AlMe(2), where R is a Zr-bound polyhexyl chain. As hexene is increasingly consumed, this cation decays, mainly back to rac-Me(2)Si(ind)(2)Zr(mu-Me)(2)AlMe(2) and, in part, to some species containing a Zr-bound allylic chain end.

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540 Chemie

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ISO 690BABUSHKIN, Dmitrii E., Hans-Herbert BRINTZINGER, 2010. Reactive Intermediates Formed During Olefin Polymerization by Methylalumoxane-Activated ansa-Zirconocene Catalysts : Identification of a Chain-Carrying Intermediate by NMR Methods. In: Journal of the American Chemical Society : JACS. 2010, 132(2), pp. 452-453. ISSN 0002-7863. eISSN 1520-5126. Available under: doi: 10.1021/ja909157r
BibTex
@article{Babushkin2010React-9556,
  year={2010},
  doi={10.1021/ja909157r},
  title={Reactive Intermediates Formed During Olefin Polymerization by Methylalumoxane-Activated ansa-Zirconocene Catalysts : Identification of a Chain-Carrying Intermediate by NMR Methods},
  number={2},
  volume={132},
  issn={0002-7863},
  journal={Journal of the American Chemical Society : JACS},
  pages={452--453},
  author={Babushkin, Dmitrii E. and Brintzinger, Hans-Herbert}
}
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