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线性和环体有机硅化合物的²⁹Si NMR研究

²⁹Si NMR STUDY OF LINEAR AND CYCLIC ORGANOSILICON COMPOUNDS

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【Author】 Li Ercheng Piao Aizhi Xie Zemin Xu Guanzhi(Institute of Chemistry, Academic Sinica)Tao Jiaxun Feng Yuping(Chemistry and Engineering Department of Qing Hua University,Beijing)

【机构】中国科学院化学研究所；清华大学化学化工系；清华大学化学化工系北京；北京；北京；

【摘要】本文研究了聚二甲基硅氧烷（Ⅰ）（X=Cl,NEt₂;n=0,1,2,3,4,5,6）及环硅氧烷（R₂SiO）_n（Ⅱ）、环硅氨烷（R₂SiNH）_n（Ⅲ）（R=Me,Ph,n=3,4）的²⁰Si NMR谱,分别讨论了Ⅰ中n及X（X=Cl、OH、NEt₂,Me）对其末端基和中间基的δSi的影响和Ⅱ、Ⅲ、中环大小及R对其δSi的影响。更多还原

【Abstract】 The 29Si NMR spectra of a, w-bischloro-and a, w-bis (diethylamine)-polydcmethylsilanes XSiO(SiO)nSiOX (I) (X=Cl,NEt2;n=0,1,2,3,4,5,6)andcyclosilanes(R2SiO)n(II),cyclo-silazanes(R2SiNH)a, (II) (R=Me,Ph;n=3,4) have been measured.The effets of n and X(X=Cl,OH,NEt2,Me)on si of end-and middle-groups in I and the effects of ring-size and R on si of II,III have been discussed更多还原