摘要
本文研究了N,N-二甲基苯胺分子在环已烷和苯混合溶剂中的1HNMR谱的溶剂效应,观察到N,N-二甲基苯胺分子内的两个甲基和混合溶剂中的苯、环己烷的化学位移随苯的摩尔分数增加而逐渐移向高场,ASIS值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苯对N,N-二甲基苯胺的ASIS效应。
This article studies the solvent effect of 1H NMR of N,N-dimethyl aniline in the mixed solvent of benzene and cyclohexane.It has been found that the chemical shifts of the two methyl sroups in N,N-dimethyl aniline and that of benzene and cyclohexane in the mixed solvent move upfield gradually as the mole fraction of benzene increases.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 solvatfon to explain the ASIS effect of benzene on N,N-dimethyl aniline.
出处
《光谱实验室》
CAS
CSCD
1995年第1期37-39,共3页
Chinese Journal of Spectroscopy Laboratory