波谱学杂志 ›› 1997, Vol. 14 ›› Issue (4): 363-366.

• 研究论文 • 上一篇    

2,2-二(甲硫基)乙烯基苯基酮1H NMR溶剂效应的研究

张海峰1, 张建军2, 周清泽2   

  1. 1 河北科技大学, 石家庄 050018;
    2 河北范大学实验中心, 石家庄 050016
  • 收稿日期:1996-12-25 修回日期:1997-01-23 出版日期:1997-08-05 发布日期:2018-01-22
  • 作者简介:张海峰,男,56岁,教授

A STUDY OF THE SOLVENT EFFECT oF 2,2-DI(METHYLTHIO)VINYL PHENYL KETONE BY 1H NMR

zhang Haifeng1, Zhang Jianjun2, Zhou Qingze2   

  1. 1 Hebei University of Science and Technology, Shijiazhuang 050018;
    2 Experimental Center, Hebei Normal University, Shijiazhuang 050016
  • Received:1996-12-25 Revised:1997-01-23 Online:1997-08-05 Published:2018-01-22

摘要: 在四氯化碳介质中考察了苯对标题化合物的核磁共振谱的溶剂效应.观察到标题化合物分子中的两个甲硫基和混合溶剂中的苯的共振吸收峰随着苯的摩尔分数增加而逐渐移向高场,而且两个甲硫基向高场移动程度不同,ASIS值也随苯的摩尔分数增加而增加,得到了所有化学位移值和ASIS值与苯的摩尔分数呈线性关系,尝试用溶剂化作用解释了标题化合物的ASIS效应.

关键词: 1H NMR, 混合溶剂, 化学位移, 溶剂化作用, ASIS效应

Abstract: This article studies the solvent effect of benzene on the NMR sprctra of title compound in carbon tetrachloride. It has been found that the chemical shifts of the resonance absorption lines of the two methylthio groups in title compound and that of benzene in the mixed solvent move upfield gradually,as the mole fraction of benzene in the mired solvent increases. The rates of upfield shifts of the reso-nance absorption lines of the two methylthio groups are different, and as the mole fraction of benzene increases, the ASIS increases. All the chemical shifts and ASIS show linear relationships with the mole fraction of benzene in the mixed solvent. It has been tried to use the solvation to explain the ASIS effect of benzene on title compound.

Key words: 1H NMR, Mixed solvent, Chemical shifts, Solvation, ASIS effect