Cationic alkylzirconium complexes based on a tridentate diamide ligand: New alkene polymerization catalysts

被引:331
作者
Horton, AD
DeWith, J
vanderLinden, AJ
vandeWeg, H
机构
[1] Shell Res. Technol. Ctr., Amsterdam, 1030 BN Amsterdam
关键词
D O I
10.1021/om960073k
中图分类号
O61 [无机化学];
学科分类号
070301 ; 081704 ;
摘要
Alkyl abstraction from {Me(3)SiN(CH(2)CH(2)NSiMe(3))(2)}ZrR(2) (N(3)ZrR(2); R = CH(2)Ph, Me) using B(C6F5)(3) affords cationic alkyl complexes stabilized by a diamide ligand. The ionic eta(2)-benzyl adduct decomposes slowly to give a cationic cyclometalation product, which coordinates the [PhCH(2)B(C6F5)(3)](-) anioin; the methyl cation coordinates the anion [MeB(C6F5)(3)](-) via a Zr...Me-B interaction. The complexes exhibit moderate ethene polymerization activity.
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页码:2672 / 2674
页数:3
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