变角样品旋转(VASS)NMR理论研究  

Theoretical Study on VASS NMR

作　　者：陈铁红[1] 王凯旋[1] 丁大同[1] 王敬中[1] 李赫喧[1] 邓风[2] 吴冬辉[2] 

机构地区：[1]南开大学化学系,天津300071 [2]中国科学院武汉物理研究所,武汉430071

出　　处：《离子交换与吸附》1993年第6期520-528,共9页Ion Exchange and Adsorption

摘　　要：介绍了半整数四极核的变角样品旋转核磁共振(VASS NMR)理论:包括核电四极相互作用、各向异性化学位移作用在样品旋转情况下的核磁共振吸收。本文将前人的工作延伸到核电四极作用和各向异性化学位移作用同时存在、二者主轴系不重合的最一般情况;推导出普适公式,并据此建立VASS NMR粉末谱型的拟谱程序。The theory of VASS NMR (Variable Angle Sample Spinning) NMR for half-integer quadrupolar nuclei, in which the quadrupolar interaction HQ and chemical shift Hcs are dealt with seperately, is introduced briefly. The present work extends the study to more general case that both HQ and Hcs exist simultaneously and their tensors orient differently. The general formulation is deduced, by which the simulation program for VASS NMR powder pattern is set up.

关 键 词：变角样品旋转 NMR 化学位移 

分 类 号：O641[理学—物理化学]