Synthesis and characterization of 2,4,6-tris((dimethylamino)methyl)phenoxysilicon compounds
作者:Aman Akkari-El Ahdab、Ghassoub Rima、Heinz Gornitzka、Jacques Barrau
DOI:10.1016/s0022-328x(01)01053-1
日期:2001.11
hexacoordinated [4+2] in 9. The 1H-NMR features are consistent, in all cases, with dynamic coordination mode of the o-NMe2 groups in solution at room temperature. The solid-state structures of the lithium phenolate and of compounds 6 and 9 have been determined by X-ray diffraction. The trimeric structure of ArOLi contains an Li3O3-ring that is almost perfectly planar; the structures of 6 and 9 confirm no
一系列2,4,6-三((二甲基氨基)甲基)苯氧基硅化合物Σ4− n Si(OAr)n(Σ= Cl; n = 1(1),2(2);Σ= Me,n = 1(3),2(4);Σ= Me 3 Si,n = 1(5),2(6)),PhSiH n(OAr)3− n(n = 2(7),1(8))和H n Si(OAr)4− n(n = 2(9),1(10))已通过各种适应方法合成。通过29 Si-,1 H-,13 C-,15 N-NMR对化合物进行光谱表征。在溶液中的硅⋯N键的形成和协调这些化合物中的程度是从所确定的29的Si-NMR(和15 N)化学位移和1 Ĵ SiH。硅中心四配位在3 - 6,在五配位的1,2,7,8和六配位[4 + 2] 9。在1在所有情况下,H-NMR特征在室温下与溶液中o -NMe 2基团的动态配位模式一致。酚酸锂以及化合物6和9的固态结构已经通过X射线衍射测定。ArOLi