Synthesis of zirconium complexes that contain a tridentate diamido ligand

被引：40

作者：

Schattenmann, FJ ^{[1
]}

Schrock, RR ^{[1
]}

Davis, WM ^{[1
]}

机构：

[1] MIT, Dept Chem 6331, Cambridge, MA 02139 USA

来源：

ORGANOMETALLICS | 1998年 / 17卷 / 05期

关键词：

D O I：

10.1021/om9707836

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The triamine t-BuNHSiMe2NHCH2CH2NMe2 (1; =H-2[NSiN2]) was synthesized from LiNHCH2CH2NMe2 and t-BuNHSiMe2Cl and used without purification to produce [NSiN2]Zr(NMe2)(2) (2) from Zr(NMe2)(4). Addition. of excess trimethylsilyl chloride to 2 gave [NSiN2]ZrCl2 (3). Dialkyl complexes of the type [NSiN2]ZrR2 (R = CH2SiMe3, CH2Ph, CH2CHMe2) were prepared readily by alkylation of 3. The structure of a magnesium chloride adduct ofthe diisobutyl derivative showed it to be a dimer, {[NSiN2]Zr(CH2CHMe2)(2)MgCl2}(2), which contains a ZrN(Cl)MgCl2MgN(Cl)Zr backbone. [NSiN2]Zr(CH2CHMe2)(2) proved to be inactive for the polymerization of I-hexene when activated by either [PhNMe2H][B(C6F5)(4)] or [Ph3C][B(C6F5)(4)] in chlorobenzene at 0 degrees C.

引用

页码：989 / 992

页数：4

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