Nuclear magnetic resonance in solids containing small molecules
Nuclear magnetic resonance in solids containing small molecules
复制标题
含有小分子的固体中的核磁共振
DOI：
10.1016/0022-3697(61)90077-4
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发表时间：
1961
影响因子：
4
通讯作者：
E. R. Andrew
中科院分区：
文献类型：
--
作者：
E. R. Andrew
分子在固态中的重定向和扩散可以通过它们引起的核磁共振谱的变窄来揭示。概述了如何确定运动的性质，以及如何通过测量自旋晶格弛豫时间来研究运动的动力学。给出了含小分子固体中旋转运动的例子。还描述了晶体宏观旋转的影响。给出了一个由核磁共振功建立了自扩散的有机分子固体的表。它们都至少有一个固态相变：对它们中的大多数来说，相变熵远大于熔化熵。它们都是致密的球状分子，在固体状态下表现出相当大的旋转自由度。
The reorientation and diffusion of molecules in the solid state may be revealed through the narrowing which they cause of the nuclear magnetic resonance spectrum. It is shown in outline how the nature of the motion can be determined and how, through measurements of the spinlattice relaxation time, the kinetics of the motion may be investigated. Examples are given of rotational motion in solids containing small molecules. The effect of macroscopic rotation of a crystal is also described. A table is given of organic molecular solids in which self-diffusion has been established by nuclear magnetic resonance work. All have at least one phase transition in the solid state: for most of them the entropy of transition is much greater than the entropy of melting. All are compact, globular molecules and show considerable rotational freedom in the solid state.