波谱学杂志 ›› 1997, Vol. 14 ›› Issue (1): 83-88.

• 研究论文 • 上一篇    下一篇

旋转坐标系同核NOE差谱

缪振春, 冯锐, 李光玉, 杜泽涵   

  1. 军事医学科学院毒物药物研究所, 北京 100850
  • 收稿日期:1996-07-03 修回日期:1996-08-19 出版日期:1997-02-05 发布日期:2018-01-22

A NOE DIFFERENCE EXPERIMENT IN ROTATING FRAME

Miao Zhenchun, Feng Rui, Li Guangyu, Du Zehan   

  1. Institute of Pharmacology and Toxicology, Academy of Military Medical Science, Beijing 100850
  • Received:1996-07-03 Revised:1996-08-19 Online:1997-02-05 Published:2018-01-22

摘要: 提出一种测定旋转坐标系NOE差谱的NMR技术.与通常的NOE技术相比,其特点是:应用范围较广,可节省测定时间,NOE信号为纯吸收型,可测定NOE的大小,并且可得到某些谱峰高度重叠,采用通常技术难于测定的有机化合物的NOE谱.

关键词: 旋转坐标系NOE差谱, NMR技术, 结构测定

Abstract: A NMR method for measuring selective homonuclear NOE effect under spin-locked conditions,called 1D ROE difference spectroscopy, was proposed. This technique provides a single and fast way to obtain NOE in complex overlapping spectral regions, and is particularly suitable for the molecules which have a motional correlation time τc near condition ωτc=1, where ω is the angular Larmor frequency. The 1D ROE spectrum obtained show clear lineshapes and good resolution. The dispersive signals commonly encountered in the conventional NOE difference spectra are much less pronouned in the 1D ROE spectra obtained by this technique.

Key words: 1D ROE difference spectroscopy, NMR technique