IMIDAZOLE DERIVATIVES .13. CARBENE COMPLEXES OF SILICON AND TIN

被引：177

作者：

KUHN, N ^{[1
]}

KRATZ, T ^{[1
]}

BLASER, D ^{[1
]}

BOESE, R ^{[1
]}

机构：

[1] UNIV ESSEN GESAMTHSCH,INST ANORGAN CHEM,D-45117 ESSEN,GERMANY

来源：

CHEMISCHE BERICHTE | 1995年 / 128卷 / 03期

关键词：

CARBENES; ORGANOSILICON COMPOUNDS; ORGANOTIN COMPOUNDS;

D O I：

10.1002/cber.19951280307

中图分类号：

O6 [化学];

学科分类号：

0703 ;

摘要：

Stable adducts of the composition L . SiCl4 (2), L . SiR(2)Cl(2) (3, 4), and L . SnR(2)Cl(2) (6) are formed by the reaction of the imidazol-2-ylidenes L (1) with the corresponding silicon and tin halides. For L . SiCl4 (2b; L = 1,3-diethyl-4,5-dimethylimidazol-2-ylidene) and L . SnPh(2)Cl(2) (6c; L = 1,3-diisopropyl-4,5-dimethylimidazol-2-ylidene) the monomeric nature of the compounds containing pentacoordinated silicon and tin is established by X-ray structure analyses. The reaction of 1,3-diisopropyl-4,5-dimethylimidazol-2-ylidene (Ic) with SnCl2 leads to the formation of the monomeric stannylene complex L . SnCl2 (7c; L = 2,3-diisopropyl-4,5-dimethylimidazol-2-ylidene) whose molecular geometry indicates a week carbon-to-tin donor bond [Sn-C(1) 2.290(5) Angstrom].

引用

页码：245 / 250

页数：6

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