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  

THE APPLICATION OF HOMONUCLEAR RELAY SPECTROSCOPY TO THE ~1H CHEMICAL SHIFTS ASSIGNMENTS OF GINSENOSIDE -Rb_1

作　　者：杨延武[1] 许肖龙[2] 毛诗珍[2] 裘鉴卿[2] 王德华[2] 钱保功[2] 

机构地区：[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

出　　处：《波谱学杂志》1993年第2期141-148,共8页Chinese Journal of Magnetic Resonance

基　　金：国家自然科学基金

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Rb₁的¹H 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。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.

关 键 词：人参皂甙 NMR 有机化合物 

分 类 号：O629.13[理学—有机化学]