高等学校化学学报 ›› 1990, Vol. 11 ›› Issue (4): 367.

• 研究论文 • 上一篇    下一篇

二茂镱、镝邻位取代苯甲酸衍生物的薄层色谱与紫外光谱的研究

李松兰1, 杨学谨1, 孙成1, 梁树森1, 叶钟文2   

  1. 1. 南开大学化学系;
    2. 安徽师范大学化学系
  • 收稿日期:1988-10-26 出版日期:1990-04-24 发布日期:1990-04-24
  • 通讯作者: 李松兰

A Study on the Thin-Layer Chromatography and Ultraviolet Spectrum of Dicyclo-pentadienyl Ytterbium and Dysprosium o-Substitutied Benzole Acid Derivatives

Li Songlan1, Yang Xuejin1, Sun Cheng1, Liang Shusen1, Ye Zhongwen2   

  1. 1. Department of Chemistry, Nankai University, Tianjin;
    2. Department of Chemistry, Aukui Normal University, Wuhu
  • Received:1988-10-26 Online:1990-04-24 Published:1990-04-24

摘要: 用改性薄层色谱板研究了二茂镱、镝邻位取代苯甲酸衍生物的色谱行为,发现Rf值随芳环邻位取代基R的给电子能力递增而递降。初步从理论上探讨了Rf值与紫外光谱R带λmax值随R基团呈相反的变化关系。

关键词: 改性薄层板, 紫外光谱R带, 相互关系

Abstract: The thin-layer chromatography behavior of dicyclopentadienyl ytterbium and dysprosium o-substituted benzoic acid derivatives is studied using silica gel Gplate impregnated with decane. The following rules have been obtained:1. The Rf values are decreased as the increasing of the electron donating ability of o-substituting group in the aromatic ring.2. The silica gel plate impregnated with decane diminishes the absorbing activity only, but has no effect on the behavior of absorption chromatography.3. The Rf values change in the opposite direction with the λmax, values of ultraviolet spectrum for the series of compounds. The preliminary discussion is also made for this relationship in theory.

Key words: Modified thin layer plate, Ultraviolet spectrum R band, Mutual relationship

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