Solid-state NMR can afford the structural information about the chemical composition, local environment, and spatial coordination at the atomic level, which has been extensively applied to characterize the detailed structure and host-guest interactions in metal-organic frameworks (MOFs). In this review, recent advances for the structural characterizations of MOFs using versatile solid-state NMR techniques were briefly introduced. High-field sensitivity-enhanced solid-state NMR method enabled the direct observation of metal centers in MOFs containing low-γ nuclei. Two-dimensional (2D) homo- and hetero-nuclear correlation MAS NMR experiments provided the spatial proximity among linkers, metal clusters and the introduced guest molecules. Moreover, quantitative measurement of inter-nuclear distances using solid-state NMR provided valuable structural information about the connectivity geometry as well as the host-guest interactions within MOFs. Furthermore, solid-state NMR has exhibited great potential for unraveling the structure property of MOFs containing paramagnetic metal centers.

固态核磁共振可以在原子水平上提供有关化学成分、局部环境和空间配位的结构信息，已广泛应用于表征金属有机框架 (MOF) 中的详细结构和主客体相互作用。在这篇综述中，简要介绍了使用多功能固态 NMR 技术对 MOF 结构表征的最新进展。高场灵敏度增强的固态 NMR 方法能够直接观察含有低 γ 核的 MOF 中的金属中心。二维 (2D) 同核和异核相关 MAS NMR 实验提供了接头、金属簇和引入的客体分子之间的空间接近性。而且，使用固态 NMR 对核间距离的定量测量提供了有关连接几何结构以及 MOF 内主客体相互作用的有价值的结构信息。此外，固态核磁共振在揭示含有顺磁性金属中心的 MOF 的结构特性方面表现出巨大的潜力。