THE X-RAY CRYSTAL-STRUCTURES OF THE MONONUCLEAR SILYLLITHIUM SPECIES LI(THF)(3)SIPH(3) AND LI(THF)(3)SI(SIME(3))(3)

被引：57

作者：

DIAS, HVR ^{[1
]}

OLMSTEAD, MM ^{[1
]}

RUHLANDTSENGE, K ^{[1
]}

POWER, PP ^{[1
]}

机构：

[1] UNIV CALIF DAVIS,DEPT CHEM,DAVIS,CA 95616

来源：

JOURNAL OF ORGANOMETALLIC CHEMISTRY | 1993年 / 462卷 / 1-2期

基金：

美国国家科学基金会;

关键词：

D O I：

10.1016/0022-328X(93)83334-R

中图分类号：

O61 [无机化学];

学科分类号：

070301 ; 081704 ;

摘要：

The organosilyllithium tetrahydrofuranate complexes Li(THF)(3)SiPh(3) (1) and Li(THF)(3)Si(SiMe(3))(2) (2) were crystallized and structurally characterized by X-ray crystallography. Both compounds possess monomeric structures with relatively long (ca. 2.67 Angstrom) Li-Si bonds. In addition, the lithium-bound silicons have distorted tetrahedral geometries with low C-Si-C and Si-Si-Si angles of 101.3 degrees (av.) (1) and 102.6 degrees (av.) (2). Compound 1, which has not been reported as an isolated species, has been characterized by H-1,Li-7, Si-29 NMR and IR spectroscopy. These studies indicate that the Li-Si bond remains intact in THF solution at -80 degrees C.

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页码：1 / 6

页数：6

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