作者:Clemens Krempner、Ulrike Jäger-Fiedler、Martin Köckerling、Helmut Reinke
DOI:10.1021/om800930s
日期:2009.1.12
The synthesis and structures of zirconium and titanium trisiloxides containing the tridentate ligand [MeSi(RMeSiO)3]3- (rac-l,l-3)-3H (R = Si(SiMe3)2Me) are reported. Reactions of rac-l,l-3 with M(OEt)4, where M = Ti or Zr, gave tridentate complexes of formula [MeSi(RMeSiO)3]MOEt (l,l-4, M = Ti; l,l-5, M = Zr). In striking contrast, treatment of rac-l,l-3 with Zr(NEt)4 afforded the spirocyclic complex
合成和含有三齿配体的锆和钛的trisiloxides结构[MESI(RMeSiO)3 ] 3-(外消旋- 1,1- - 3)-3H-(R = SI(森达3)2 Me)的报告。外消旋-反应1,1- - 3与M(OET)4,其中M = Ti或Zr,得到式的三齿配合物[MESI(RMeSiO)3 ]酩(1,1- - 4 ;,M =钛1,1- - 5,M = Zr)的。与之形成鲜明对比的是,用Zr(NEt)4处理rac- 1,l - 3得到螺环复杂[MESI(RMeSiO)3 ] 2的Zr}ħ 2(1,1- - 7)。这些化合物具有双环辛烷结构,这在金属硅氧化物的化学中是迄今未知的。