有机化学 ›› 1999, Vol. 19 ›› Issue (1): 77-80. 上一篇    下一篇

研究论文

醇溶剂对羰基(C=O)紫外吸收的定量影响

文彬;曹晨忠   

  1. 湘潭师范学院化学系.湖南(411100)
  • 发布日期:1999-02-25

The quantified effecting of alcohol solvent on the carbonyl (C=O) ultraviolet absorption

Wen Bin;Cao Chenzhong   

  1. Xiangtan Normal College, Department of Chemistry.Xiangtan(411100)
  • Published:1999-02-25

以各种醇为溶剂测定了丙酮和环己酮的羰基紫外吸收能量ΔE,讨论了ΔE与醇分子结构的关系。结果表明ΔE与醇分子中烷基的极化效应指数PEI有良好的线性关系:ΔE=a+bPEI。

关键词: 丙酮, 溶剂, 环己酮, 醇, 羰基化合物, 紫外分光光度法

Using a series of alcohols as solvents, the ultraviolet absorption energy (ΔE) values of carbonyl (C=O) for acetone and cyclohexanone were determined. The relations between those ΔE values and the molecular structure of solvent alcohols were discussed. The obtained results showed that there is a good linear relation between the ΔE value and the alkyl polarizability effect index PEI value of alcohol molecule, that is ΔE=a+bPEI.

Key words: CARBONYL COMPOUNDS, SOLVENTS, CYCLOHEXANONE, ULTRAVIOLET SPECTROPHOTOMETRY, ACETONE, ALCOHOL

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