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高等学校化学研究 ›› 1992, Vol. 8 ›› Issue (3): 253-257.

• Articles • 上一篇    下一篇

Studies on the Properties of Schiff Base Type of Aryl mercury Compounds(Ⅰ)--1H NMR Spectra of Some Schiff Base Type Aryl mercury Compounds and Substituted Benzyl ideneanilines

WU Yang-jie1, DING Kui-ling1, YU Zheng-yan1, WU Dong-hui2, SHEN Lian-fang2   

  1. 1. Department of Chemistry, Zhengzhou University, Zhengzhou, 450052;
    2. Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics, Chinese Academy of Sciences, Wuhan, 430070
  • 收稿日期:1991-09-21 出版日期:1992-08-24 发布日期:2011-09-09
  • 基金资助:

    Supported by the National Natural Science Foundation of China

Studies on the Properties of Schiff Base Type of Aryl mercury Compounds(Ⅰ)--1H NMR Spectra of Some Schiff Base Type Aryl mercury Compounds and Substituted Benzyl ideneanilines

WU Yang-jie1, DING Kui-ling1, YU Zheng-yan1, WU Dong-hui2, SHEN Lian-fang2   

  1. 1. Department of Chemistry, Zhengzhou University, Zhengzhou, 450052;
    2. Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics, Chinese Academy of Sciences, Wuhan, 430070
  • Received:1991-09-21 Online:1992-08-24 Published:2011-09-09
  • Supported by:

    Supported by the National Natural Science Foundation of China

PDF (PC)

摘要： 1HNMR spectra of 16 Schiff base type of arylmercury compounds and 4 -substituted benzylideneanilines have been studied. It was found that the p-substituents of the N-phenyl ring do not affect the δ values of methine proton, whereas the o-substitutents influence the δ values of methine proton, whereas the o-substituents influence the δ values of methine proton significantly. These changes can be reasonably interpreted in terms of the steric inhibition of o-substituents and intramolecular coordination of imino nitrogen with mercury. The influence of the m-or p-substituent of the C-phenyl ring on the δ values of methine proton exhibited a linear correlation with Hammett constants σp or σm. It was also confirmed that in the molecules of Schiff base type of arylmercury compounds there exists an intramolecular coordination via a four-membered ring.

关键词: 1H NMR, Arylmercurial, Substituent effect, N&rarr, Hg intramolecular co-ordination

Abstract: 1HNMR spectra of 16 Schiff base type of arylmercury compounds and 4 -substituted benzylideneanilines have been studied. It was found that the p-substituents of the N-phenyl ring do not affect the δ values of methine proton, whereas the o-substitutents influence the δ values of methine proton, whereas the o-substituents influence the δ values of methine proton significantly. These changes can be reasonably interpreted in terms of the steric inhibition of o-substituents and intramolecular coordination of imino nitrogen with mercury. The influence of the m-or p-substituent of the C-phenyl ring on the δ values of methine proton exhibited a linear correlation with Hammett constants σp or σm. It was also confirmed that in the molecules of Schiff base type of arylmercury compounds there exists an intramolecular coordination via a four-membered ring.

Key words: 1H NMR, Arylmercurial, Substituent effect, N→Hg intramolecular co-ordination