摘要
该文在四氯化碳介质中考察了苯乙烯对丙酮肟和Ｎ，Ｎ－二甲基甲酰胺（ＤＭＦ）１ＨＮＭＲ谱的溶剂效应，观察到丙酮肟、ＤＭＦ和苯乙烯的化学位移随苯乙烯的摩尔分数增加而逐渐移向高场，丙酮肟和ＤＭＦ分子中的两个甲基向高场移动的程度不同，而且两个甲基和苯乙烯分子中的苯基的化学位移与混合溶剂中苯乙烯的摩尔分数呈线性关系．
This article studies the solvent effect of styrene on acetoxime and N,N-dimethyl formamide in carbon tetrachloride. It has been found that the chemical shifts of the resonance absorption lines of the two methyl groups in acetoxime or N,N-dimethyl formamide(DMF)and that of styrene in the mixed solvent move upfield gradually,as the mole fraction of styrene in the mixed solvent increase. The rates of upfield shifts of the resonance absorption lines of the two methyl groups are different. A linear relationship is presented between the chemical shifts of the two methyl groups in acetoxime or DMF and that of phenyl in styene,and the mole fraction of styrene in the mixed solvent.
出处
《河北师范大学学报（自然科学版）》
CAS
1994年第2期55-58,共4页
Journal of Hebei Normal University：Natural Science
关键词
丙酮肟
二甲基甲酰胺
NMR
溶剂效应
acetoxime
N
N-dimethyl formamide
￣1H NMR
mixed solvent
solvation.
