研究塑性有机固体的^1H NMR方法  

~1H NMR Studies of Plastic Organic Solids

作　　者：胡建治[1] 毛胜华[1] 冯汉桥[1] 周进元[1] 邓风[1] 杨年华[1] 李丽云[1] 叶朝辉[1] 

机构地区：[1]中国科学院武汉物理所波谱与原子分子国家重点实验室,武汉430071

出　　处：《物理化学学报》1997年第1期16-19,共4页Acta Physico-Chimica Sinica

基　　金：国家自然科学基金

摘　　要：塑性有机固体的1HMASNMR谱通常由一高分辨谱与一宽城谱组成，其中高分辨谱分量对应于塑性相，而宽线谱分量对应于刚性相．长延迟回波-MASNMR实验可测得塑性相的高分辨谱，CRAMPS方法可测得整个固体1H体系的高分辨谱，常温下它往往以刚性相的贡献为主要成分．实验结果表明，结合1HMAS、回波-MAS与CRAMPS等三种固态高分辨1HNMR技术可望成为深入研究塑性有机固体中塑性相与刚性相的比例，分子结构及运动状态的有效方法．The H MAS spectrum of a plastic organic solid is usually composed of a highresolution component and a broadline component. The high-resolution component corresponds to a plastic phase, while the broadline component corresponds to the rigid Phase. The high-resolution spectrum of the plastic phase can be observed by the echo-MAS experiment with a long ccho time; the high-resolution spectrum of the whole H system can be observed by the CRAMPS technique,mainly coming from the contribution of the rigid phase at usual temperature. It is shown that combination of CRAMPS with 1H MAS and echo-MAS is an effective way for studying the ratio of the plastic phase to the rigid phase, molecular st,ructure and states of motion in orgall]c solids.

关 键 词：NMR 有机固体 有机塑性固体 MAS 回波-MAS 

分 类 号：O621.15[理学—有机化学]