高等学校化学学报

高等学校化学学报 ›› 1988, Vol. 9 ›› Issue (6): 596.

• 论文 • 上一篇    下一篇

甲基三氢集团的研究

黄常华, 王彦中, 吕亮德, 刘靖疆   

  1. 南开大学化学系
  • 收稿日期:1986-12-26 出版日期:1988-06-24 发布日期:1988-06-24
  • 通讯作者: 黄常华

Investigation of Methyl Tri-Hydrogen Group

Huang Changhua, Wan Yanzhong, Lu Liangde, Liu Jingjiang   

  1. Department of Chemistry, Nankai University, Tianjin
  • Received:1986-12-26 Online:1988-06-24 Published:1988-06-24

PDF (PC)

被引次数

6

摘要： 本文通过FT-IR,溶解热和从头计算分子轨道法,对含三氢集团的分子(丙酮、乙酸甲酯、二甲基亚砜等)分子间的相互作用做了研究。在所研究的体系中,计算表明在甲基3个氢原子的中心方向有一个正电势区。它导致负电集团红外吸收带频率位移,溶解热的数据进一步说明三氢集团的集体效应。

关键词: 三氢集团, 分子间力, 电势区, 红外谱带位移, 溶解热

Abstract: In this paper, compounds containing methyl trihydrogen group (acetone, methyl acetate, dimethyl sulfpxide) are investigated by FT-IR. When dilute them with,inert Solvents, the overtones of stretching model of CO and SO groupsshift to high frequency. At the same time, the C—H stretching model shifts to low frequency. It declares that CH3 interacts with O atom, but the interaction is different, from hydrogenbonding.

Key words: Tri-hydrogen group, Intermolecular force, Electrostation potential, Band shifts of IR, Heat of solution

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