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Issue 9, 2007
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High tacticity control in organolanthanide polymerization catalysis: formation of isotactic poly(α-alkenes) with a chiral C3-symmetric thulium complex

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Abstract

The thulium complexes [Tm(iPr-trisox)(CH2SiMe2R)3] (R = Me 1a, Ph 1b) were synthesized from the thulium trialkyl precursors [Tm(CH2SiMe2R)3(thf)2]; reaction of 1a with two equivalents of [Ph3C][B(C6F5)4] gave a cationic complex 1c, which was found to polymerize 1-hexene, 1-heptene and 1-octene to give the corresponding polyolefins with moderate to good activities and with minimum isotacticity of 90%, 83% and 95%, respectively.

Graphical abstract: High tacticity control in organolanthanide polymerization catalysis: formation of isotactic poly(α-alkenes) with a chiral C3-symmetric thulium complex

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Publication details

The article was received on 08 Jan 2007, accepted on 10 Jan 2007 and first published on 18 Jan 2007


Article type: Communication
DOI: 10.1039/B700269F
Citation: Dalton Trans., 2007, 920-922
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    High tacticity control in organolanthanide polymerization catalysis: formation of isotactic poly(α-alkenes) with a chiral C3-symmetric thulium complex

    L. Lukešová, B. D. Ward, S. Bellemin-Laponnaz, H. Wadepohl and L. H. Gade, Dalton Trans., 2007, 920
    DOI: 10.1039/B700269F

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