ABSTRACT
Solid-state NMR spectroscopy is widely applied in modern chemistry and biochemistry to characterize insoluble molecular systems ranging from simple inorganic and organic molecules to complex bio-organic molecules and proteins and their complexes. Objects of solid-state NMR studies in materials science are inorganic/ organic aggregates in crystalline and amorphous states, composite materials, heterogeneous systems including liquid and gas components, suspensions, and molecular aggregates with dimensions on the nanoscale, where different nuclei can be used as NMR probes. Solid-state NMR is capable of solving various problems at the atomic level, including simple descriptions of molecular fragments and structural units in various systems and the accurate determination of their structure and mobility on a very large time scale. In contrast to NMR in solutions, solid-state NMR spectroscopy allows measurement of three-dimensional (3D) chemical shifts that potentially better describe the electron structure of compounds.
