波谱学杂志 ›› 1993, Vol. 10 ›› Issue (2): 141-148.

• 研究论文 • 上一篇    下一篇

同核RELAY相干传递技术在复杂天然有机化合物1H谱解析中的应用

杨延武1, 许肖龙2, 毛诗珍2, 裘鉴卿2, 王德华2, 钱保功2   

  1. 1. 南开大学高分子化学研究所, 天津 300071;
    2. 中国科学院武汉物理研究所波谱与原子分子物理国家重点实验室, 武汉 430071
  • 收稿日期:1992-05-03 修回日期:1992-08-14 出版日期:1993-06-05 发布日期:2018-01-20
  • 基金资助:
    国家自然科学基金

THE APPLICATION OF HOMONUCLEAR RELAY SPECTROSCOPY TO THE 1H CHEMICAL SHIFTS ASSIGNMENTS OF GINSENOSIDE-Rb1

Yang Yanwu1, Xu Xiaolong2, Mao Shizhen2, Qiu Jianqing2, Wang Dehua2, Qian Baogong2   

  1. 1. Institute of Polymer Chemistry, Nankai University, Tianjin 300071;
    2. State Key Laboratory of Magnetic Resonance and Atomic and Molecular Physics, Wuhan Institute of Physics, Chinese Acdemy of Sciences, Wuhan 430071
  • Received:1992-05-03 Revised:1992-08-14 Online:1993-06-05 Published:2018-01-20

摘要: 用同核化学位移相关谱和同核RELAY谱等二维NMR方法完全归属了复杂天然有机化合物人参皂甙Rb11H NMR谱线,并用积算符方法证实一级和二级RELAY实验中观察到的意外交叉峰是通过远程偶合传递的RELAY信号。

关键词: 人参皂甙Rb1, 2D NMR, 同核RELAY谱

Abstract: The 1H chemical shifts of ginsenoside-Rb1 were assigned completely by means of COSY and homonuclear RELAY spectroscopy. Some external cross peaks were observed in single and mutiple homonuclear RELAY spectra, the results of calculation of product operator indicated that these external cross peaks originated from the relayed coherence transfer of long range coupling interaction of protons.

Key words: Ginsenoside-Rb1, 2D NMR, Homonuclcar relay spectroscopy