波谱学杂志 ›› 1993, Vol. 10 ›› Issue (3): 213-219.

• 研究论文 •    下一篇

天然有机化合物NOESY谱的全弛豫矩阵分析

杨延武1, 吴冬辉2, 许肖龙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:1992-05-11 修回日期:1992-09-14 出版日期:1993-09-05 发布日期:2018-01-20
  • 基金资助:
    国家自然科学基金

COMPLETE RELAXATION MATRIX ANALYSIS OF NOESY SPECTRUM OF NATURAL ORGANIC COMPOUNDS

Yang Yanwu1, Wu Donghui2, Xu Xiaolong2, 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, the Chinese Academy of Sciences, Wuhan 430071
  • Received:1992-05-11 Revised:1992-09-14 Online:1993-09-05 Published:2018-01-20

摘要: 本文用定量处理2D NOE实验数据最精确的方法-全弛豫矩阵分析法定量分析了天然有机化合物显脉香茶菜素的相敏NOESY谱,计算出显脉香茶菜素分子中各质子间的交叉弛豫速率,根据1/rtf6σtf计算出相应的质子间距离,结果表明:用全弛豫矩阵分析法计算出的质子间距与分子力学计算以及用单晶X-射线衍射法测得的质子间距离基本一致,为用核磁共振方法确定分子在溶液中的三维空间结构提供了可靠的结构参数。

关键词: 弛豫矩阵, NOESY, 质子间距离, 显脉香茶菜素

Abstract: The complete relaxation matrix analysis method was used to process the peak intensity matrix of phase sensitive NOESY spectrum of nervosin. The cross relaxation rates between proton pairs were obtained by diagonalizing the peak intensity matrix of NOESY spectrum and the inter-proton distances in nervosin molecule were calculated according to 1/rtf6σtf. The calculated results of complete relaxation matrix analysis method are in agreement with the inter-proton distances calculated by molecular mechanics and determined by single crystal X-ray diffraction method.

Key words: Relaxation matrix, NOESY, Inter-proton distance, Nervosin