中华医学超声杂志

应用化学 ›› 1988, Vol. 0 ›› Issue (2): 48-51.

• 研究论文 • 上一篇    下一篇

频率位移测定及焓变的计算 Ⅰ.关于酚类与含氧或氮碱的加成物

李国珍   

  1. 浙江大学化学系, 杭州
  • 收稿日期:1987-01-12 修回日期:1987-07-13 出版日期:1988-04-10 发布日期:1988-04-10

FREQUENCY SHIFT MEASUREMENT AND ENTHALPYCHANGE CALCULATIONⅠ.FOR ADDUCTS OF PHENOLS WITH NITROGEN AND OXYGEN CONTAINING DONORS

Li Guozhen   

  1. Department of Chemistry, Zhefiang University, Hangzhou
  • Received:1987-01-12 Revised:1987-07-13 Published:1988-04-10 Online:1988-04-10

PDF

371

摘要： 用付里叶变换红外光谱技术测定了酚,4-叔丁基酚,2-叔丁基酚,3,5-二叔丁基酚,2,6-二叔丁基酚与一些含氧或氮的路易士碱组成的19对酸碱体系中OH的频率位移ΔνOH.根据ΔνOH和加成物生成焓(酸碱作用热)ΔH的关系,预测了相应酸碱加成物的ΔH,预测的计算值与实测值符合较好.

关键词: 有机酚, 付里叶变换红外光谱, 路易士碱, 频率位移, 焓

Abstract: Using FTIR the OH frequency shift ΔvOH for a series of tertiary butyl phenols (C6H5OH, 4-t-(CH3)3CC6H4OH, 2-t-(CH3)3CC6H4OH, 3,5-Di-t-[(CH3)C]2C6H3OH, 2,6-Di-t-[(CH3)3C]2C6H3OH] in reaction with several nitrogen and oxygen Lewis bases have been measured. The accuracy and reliability of the ΔvOH are pretty good. According to the relationship between ΔvOH and the helat of adduct formation ΔH, the latter is predicted. The calculated ΔH values were shown to be in reasonable agreement with experimental data.

Key words: Organic phenols, Lewis, base Frequeney shift, Enthalpy FTIR

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