基于脉冲序列DEPT-(90+45)的二维核磁共振谱编辑技术

2D NMR Spectral Editing Technique by Using Pulse Sequence DEPT-(90+45)

基于作者提出的脉冲序列ＤＥＰＴ（ｄｉｓｔｏｒｔｉｏｎｌｅｓｓ ｅｎｈａｎｃｅｍｅｎｔ ｂｙ ｐｏｌａｒｉｚａｔｉｏｎ ｔｒａｎｓｆｅｒ）－（９０＋４５），拟定了一个二维破－氢相关实验，用于测定所有甲基的碳－氢相关信息。联合应用二维ＤＥＰＴ－１３５实验，从而实现了二维碳－氢相关谱的编辑，对于简化二维碳－氢相关谱具有实用价值。

A 2D 13c - 1H correlation experiment is proposed by using the pulse sequence DEPT- (90 + 45), which only provides the information of 13C - 1H correlation of methyl groups. Combined with 2D DEPT - 135 experiment, spectral editing in 2D 13C - 1H spectra can be achieved, which is useful for the simplification of complicated 2D 13C - 1H correlation spectra.