波谱学杂志 ›› 1990, Vol. 7 ›› Issue (3): 327-333.

• 研究论文 • 上一篇    下一篇

丝氨酸及其La3+配合物的1H核磁共振谱参数的pH依赖性

田清平1, 沈联芳1, 姚克敏2, 扬硕望2   

  1. 1. 中国科学院武汉物理研究所波谱与原子分子物理开放实验室;
    2. 浙江大学化学系
  • 收稿日期:1989-11-29 出版日期:1990-09-05 发布日期:2018-01-23
  • 基金资助:
    国家自然科学基金

pH DEPENDENCE OF PMR PARAMETERS OF SERINE AND ITS La COMPLEX

Tian Qingping1, Shen Lianfang1, Yao Kemin2, Yang Shuowang2   

  1. 1. Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics, Academia Sinica, Wuhan, P. R. China;
    2. Department of Chemistry, Zhe Jiang University Hangzhou, P. R. China
  • Received:1989-11-29 Online:1990-09-05 Published:2018-01-23

摘要: 本文测得不同pH值下丝氨酸及其La3+配合物的1H谱,用PANIC程序对谱图进行模拟,获得化学位移和偶合常数,考察了1H核磁共振谱参数的pH依赖性,从理论上进行了解释,并由得到的偶合常数计算出丝氨酸及其La3+配合物的三种构象的比例,讨论了它们在不同pH条件下的变化,这些结果为下一步的生物大分子的研究提供了有用的信息。

关键词: 丝氨酸, 谱模拟, 配合物

Abstract: In this paper, the PMR spectra of L-serine and its complex with Lanthanum (La) at different pH values are presented. Program PANIC was used to simulate these spectra and their chemical shifts and coupling constants were obtained. The pH dependence of their chemical shifts and coupling constants was shown. The proportions of the three rotational isomers of L-serine were calculated. The conformations of L-serine and its La complex were discussed.

Key words: L-serine, spectra simulation, complex of La, pH dependence