Cationic Alkylzirconium Complexes Based on a Tridentate Diamide Ligand:  New Alkene Polymerization Catalysts

Alkyl abstraction from {Me3SiN(CH2CH2NSiMe3)2}ZrR2 (N3ZrR2; R = CH2Ph, Me) using B(C6F5)3 affords cationic alkyl complexes stabilized by a diamide ligand. The ionic η2-benzyl adduct decomposes slowly to give a cationic cyclometalation product, which coordinates the [PhCH2B(C6F5)3]- anion; the methyl...

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Bibliographic Details
Published in:Organometallics 1996-06, Vol.15 (12), p.2672-2674
Main Authors: Horton, Andrew D, de With, Jan, van der Linden, Arjan J, van de Weg, Henk
Format: Article
Language:English
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Summary:Alkyl abstraction from {Me3SiN(CH2CH2NSiMe3)2}ZrR2 (N3ZrR2; R = CH2Ph, Me) using B(C6F5)3 affords cationic alkyl complexes stabilized by a diamide ligand. The ionic η2-benzyl adduct decomposes slowly to give a cationic cyclometalation product, which coordinates the [PhCH2B(C6F5)3]- anion; the methyl cation coordinates the anion [MeB(C6F5)3]- via a Zr···Me−B interaction. The complexes exhibit moderate ethene polymerization activity.
ISSN:0276-7333
1520-6041
DOI:10.1021/om960073k