Yttrium alkyl complex with a linked bis(amidinate) ancillary ligand

被引：113

作者：

Bambirra, S ^{[1
]}

Meetsma, A ^{[1
]}

Hessen, B ^{[1
]}

Teuben, JH ^{[1
]}

机构：

[1] Univ Groningen, Ctr Catalyt Olefin Polymerizat, Stratingh Inst Chem & Chem Engn, NL-9747 AG Groningen, Netherlands

来源：

ORGANOMETALLICS | 2001年 / 20卷 / 04期

关键词：

D O I：

10.1021/om0008124

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The dilithium salt of a linked bis(amidinate) dianionic ligand, Li-2[Me3SiNC(Ph)N(CH2)(3)-NC(Ph)NSiMe3] (1), was prepared by reaction of dilithiated N,N'-bis(trimethylsilyl)-1,3-diaminopropane with benzonitrile. Reaction of 1 with YCl3(THF)(3,5) gave [Me3SiNC(Ph)N-(CH2)(3)NC(Ph)NSiMe3]YCl(THF)(2) (2), which, by reaction with Li[CH(SiMe3)(2)], was converted to the alkyl complex [Me3SiNC(Ph)N(CH2)(3)NC(Ph)NSiMe3]Y[CH(SiMe3)(2)](THF) (3). A structure determination of 3 showed that linking together the amidinate functionalities opens up the coordination sphere to allow the bonding of an additional molecule of THF not present in the unbridged bis(amidinate) analogue [PhC(NSiMe3)(2)](2)Y[CH(SiMe3)(2)].

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页码：782 / 785

页数：4

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