波谱学杂志 ›› 1994, Vol. 11 ›› Issue (1): 99-102.

• 研究论文 • 上一篇    下一篇

取代基的电子效应对苯甲酰苯胺衍生物NMR化学位移的影响

齐陈泽, 贾志胜, 崔育新, 张斌, 杨第伦   

  1. 兰州大学化学系, 兰州 730000
  • 收稿日期:1992-12-12 修回日期:1993-06-14 出版日期:1994-03-05 发布日期:2018-01-20
  • 基金资助:
    国家自然科学基金资助项目

THE INFLUENCE OF SUBSTITUENT ELECTRON EFFECT ON NMR CHEMICAL SHIFT OF SUBSTITUTED BENZANILIDE

Qi Chenze, Jia Zhisheng, Cui Yuxin, Zhang Bin, Yang Dilun   

  1. Department of Chemisty, Lanzhou University, Lanzhou 730000
  • Received:1992-12-12 Revised:1993-06-14 Online:1994-03-05 Published:2018-01-20

摘要: 用400MHz超导核磁共振波谱仪测定了X取代苯甲酰苯胺(X=p-NO2,p-Cl,p-Br,p-1,H,p-CH3,p-OCH3,m-CH3)的1H和13C NMR谱,按双参数方程进行计算,结果表明N-1H,羰基碳,与羰基相连的苯环碳和与氮相连的苯环碳等碳原子的化学位移与取代基共轭效应参数σR和诱导效应参数σI间的良好的线性关系。测得了双参数方程中适用于苯甲酰苯胺衍生物的3个常数a、b和c的值以及σRσI的权重。

关键词: 取代基效应, X-取代苯甲酰苯胺, 1H、13C NMR

Abstract: The 1H and 13C NMR spectra for a series of X-substituted benzanilide were obtained and analyzed on the basis of dual parameter equation. The three constants in the equation were determined. The relative importance of resonance effect and field effect were calculated. It was found that the linear correlation between the chemical shifts of N-1H、C1、C2、C3、C6 and substituent effect σR、σI was good straight line.

Key words: Substituent effect, X-substituted benzanilide, 1H、13C NMR