高等学校化学学报

高等学校化学学报 ›› 1987, Vol. 8 ›› Issue (3): 255.

• 论文 • 上一篇    下一篇

自然丰度氮-15核磁共振的研究(Ⅰ)--哌啶衍生物中4-位取代基对15N化学位移的远程相互作用及其与13C化学位移的关系

杨立, 刘佩琪, 孔素玲, 董颖, 陈耀祖   

  1. 兰州大学化学系
  • 收稿日期:1985-11-21 出版日期:1987-03-24 发布日期:1987-03-24

Studies on Natural-Abundance Nitrogen-15 Nuclear Magnetic Resonance Spectroscopy (Ⅰ)--Long-Range Interaction on Nitrogen-15 Chemical Shifts of 4-Substituted Piperidines and Their Correlation with Carbon-is Chemical Shifts

Yang Li, Liu Peiqi, Kong Suling, Dong Ying, Chen Yaozu   

  1. Department of Chemistry, Lanzhou University, Lanzhou
  • Received:1985-11-21 Online:1987-03-24 Published:1987-03-24

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摘要： 测定了8个4-位取代的2,2,6,6-四甲基哌啶的自然丰度15N核磁共振谱及13C谱,发现4-位取代基对15N化学位移有一定的远程相互作用,13C化学位移与4-位卤素取代基的原子电负性有近似的线性关系。

Abstract: Natural-abundance 15N and 13CNMR chemical shifts of eight 4-substituted 2,2,6,6-tetramethylpiperidines have been measured. It is found that the 15N chemical shift is correlated with the electronegativity of the 4-substituent, indicating a long-range interaction of the 4-substituent on the 15N chemical shift. Alinear relationship is also present between the 13C chemical shifts and the electronegativity of the 4-substituted atoms.

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