Disilyl Complexes of Zirconium, Hafnium, and Tantalum. Their Synthesis, Characterization, and Exchanges with Silyl Anions
作者:He Qiu、Hu Cai、Jaime B. Woods、Zhongzhi Wu、Tianniu Chen、Xianghua Yu、Zi-Ling Xue
DOI:10.1021/om050302f
日期:2005.8.1
Cyclopentadienyl-free disilyl amide complexes [(Me2N)3M(SiButPh2)2]- (M = Zr, 1; Hf, 2 as [Li(THF)4]+ salts), K(18-crown-6)3/2(Me2N)3M[(Me3Si)2Si-(CH2)2-Si(SiMe3)2]} (M = Zr, 3; Hf, 4), (Me2N)3Ta[Si(SiMe3)3]2 (5), (Me2N)3Ta(SiButPh2)2 (6), and (Me2N)3Ta(SiButPh2)[Si(SiMe3)3] (7) have been prepared. The structures of 1−4 have been determined by X-ray single-crystal diffraction. The two −Si(SiMe3)3-
不含环戊二烯基的二甲硅烷基酰胺络合物[(Me 2 N)3 M(SiBu t Ph 2)2 ] -(M = Zr,1 ; Hf,2 as [Li(THF)4 ] +盐),K(18-冠-6)3/2 (Me 2 N)3 M [(Me 3 Si)2 Si-(CH 2)2 -Si(SiMe 3)2 ]}(M = Zr,3 ; Hf,4),( Me 2 N)3 Ta [Si(SiMe 3)3] 2(5),(Me 2 N)3 Ta(SiBu t Ph 2)2(6)和(Me 2 N)3 Ta(SiBu t Ph 2)[Si(SiMe 3)3 ](7)具有准备好了。的结构1 - 4已通过X射线单晶衍射确定。两个-Si(森达3)3 -中(ME配体2 N)3的Ta [硅(森达3)3 ]2(5)是由依次-SiBu替换吨博士2 -阴离子,得到(ME 2 N)3 TA(西布吨博士2)[SI(森达3)3 ](7)和(ME