Syntheses and X-ray crystal structures of monomeric zinc and mercury bis(silylamides)
作者:Yongjun Tang、Ana M. Felix、Brian J. Boro、Lev N. Zakharov、Arnold L. Rheingold、Richard A. Kemp
DOI:10.1016/j.poly.2005.02.029
日期:2005.6
Zn[N(SiMe3)(SiPh2tBu)]2 (1), Hg[N(SiMe3)(SiPh2tBu)]2 (2), Zn[N(SiMe3)(Ad)]2 (3) and Hg[N(SiMe3)(Ad)]2 (4). All complexes are monomeric and have been fully characterized by 1H NMR, 13C NMR spectra and elemental analyses, as well as single crystal X-ray crystallography. X-ray diffraction analyses indicated that the complexes 1–4 are two coordinate with roughly linear N–M–N arrangements, although the N–Zn–N angle in 1
摘要由相应的仲胺与正丁基锂反应原位生成的锂酰胺Li [N(SiMe3)(R)](R = –SiPh2tBu和金刚烷基)已用无水ZnCl2和HgBr2处理,得到了相应的均相金属甲硅烷基酰胺Zn [N(SiMe3)(SiPh2tBu)] 2(1),Hg [N(SiMe3)(SiPh2tBu)] 2(2),Zn [N(SiMe3)(Ad)] 2(3)和Hg [N( SiMe3)(Ad)] 2(4)。所有络合物均为单体,并已通过1H NMR,13C NMR光谱和元素分析以及单晶X射线晶体学充分表征。X射线衍射分析表明,配合物1-4是两个坐标,具有大致线性的N–M–N排列,尽管1中的N–Zn–N角在167.87°处明显偏离。含金刚烷基化合物的一个不寻常特征是3采用Ad基团的顺式排列,图4示出了处于固态的反布置。我们已经研究了这些络合物与CO2的相互作用,并确定1,2和4不会与CO2反应,而3会反应生成(Ad)NCN(Ad)。