波谱学杂志 ›› 1984, Vol. 1 ›› Issue (4): 353-360.

• 研究论文 • 上一篇    下一篇

环二硅氨烷的29Si和13C NMR研究

李二成1, 谢择民1, 王金亭1, 徐广智1, 叶朝辉2   

  1. 1. 中国科学院化学研究所, 北京;
    2. 中国科学院武汉物理研究所, 武汉
  • 收稿日期:1984-04-23 出版日期:1984-06-05 发布日期:2018-01-23

29Si AND 13C NMR STUDIES OF CYCLODISILAZANE DERIVATIVES

Li Ercheng1, Xie Zemin1, Wang Jinting1, Xu Guangzhi1, C. H. Ye2   

  1. 1. Institute of Chemistry, Academia Sinica, Beijing;
    2. Institute of physics, Academia Sinica, Wuhan
  • Received:1984-04-23 Online:1984-06-05 Published:2018-01-23

摘要: 本文报道了十种环二硅氨烷衍生物(R1=Me、ф;R2=Me、ф1 R3=Me;X=Me、ф、OH、OSiMe3、H和cl)及与此有关的九种聚合物m+n(m=2,3,4,7,10)的29Si13C化学位移,讨论了取代基XR1R2及硅氧链节数m对化学位移的影响。通过考察化学位移随R1R2的变化,推断环二硅氨烷中N与其周围的三个Si之间存在(pd)π相互作用。

Abstract: The 29Si and 13C NMR spectra of ten cyclodisilazane derivatives(R1=Me,ф;R2=Me,ф;R3=Me;X=Me,ф,OH、OSiMe3、Hand Cl) and nine related polymrfes(m=2,3,4,7 and 10)have been studied systematically. The effects of substituents X, R1 R2 and si-loxane chain length on chemcal shifts have also been discussed. The results show that there are (p-d)π interactions between N atom and three adjacent Si atoms in cyclodisilazanes.