The synthesis and characterisation of some Group 14 compounds containing the 2,4,6-(CF3)3C6H2, 2,6-(CF3)2C6H3 or 2,4-(CF3)2C6H3 ligands
作者:Andrei S. Batsanov、St�phanie M. Cornet、Keith B. Dillon、Andr�s E. Goeta、Amber L. Thompson、Bao Yu Xue
DOI:10.1039/b302544f
日期:——
For E = Si the synthesis is complicated by Cl/F exchange: besides Ar′2SiCl2 and Ar″2SiCl2, 19F NMR spectroscopy identified in solution Ar″2SiF2 and Ar′2SiF2. The latter was isolated and its X-ray structure determined. In all compounds, the E atom has a strongly distorted tetrahedral coordination, supplemented by short intramolecular E⋯F contacts (secondary coordination) with o-CF3 group(s).
新的(芳基)2 ECl 2和(芳基)ECl 3化合物[E = Si,Ge或Sn;芳基= 2,4,6-(CF 3)3 C 6 H 2 (Ar),2,6-(CF 3)2 C 6 H 3 (Ar')和/或2,4-(CF 3)3 C 通过ECl 4与2当量的ArLi或Ar'Li / Ar''Li混合物的反应制备6 H 3(Ar”)] 。后者给出主要为较少位阻产品氩“ 2根据EC1 2为E = Si或Ge,但中,Ar' 2的SnCl 2的较大的中央原子。产品的特点是元素分析,19 F和(如果适用) 119 Sn NMR光谱,和单晶X射线衍射作为Ar“ 2的SiCl 2,ArGeCl 3中,Ar 2 GeCl 2,Ar”是2 GeCl 2中,Ar 2的SnCl 2和Ar' 2的SnCl 2。对于E = Si上合成由CL / F交换复杂:除了中,Ar' 2的SiCl 2和Ar“ 2的SiCl 2,19 F