ChemInform Abstract: Solid State NMR Imaging

Abstract

Publisher Summary This chapter reviews the full range of spin Hamiltonians that are seen in solid state nuclear magnetic resonance (NMR) and some basic elements of imaging such as the parameters that limit resolution and sensitivity. It also discusses methods for manipulating spin Hamiltonians that leads to different classes of solid state imaging methods, followed by a selection of applications. The required instrumentation for each experiment is described because nearly all methods require some non-standard equipment. Implementation of some of these methods requires a reasonable amount of construction, primarily of probes and gradient drivers. While discussing the resolution and sensitivity limits of NMR imaging, the basic interrelationships between imaging parameters and spectroscopic properties and conditions under which these can be separated is important. One very appealing approach to NMR imaging is to “turn off” all of the Hamiltonians of the system except the gradient Hamiltonian for spatial encoding. Therefore, for a solid sample, the dipolar, chemical shielding, and susceptibility shift Hamiltonians are employed selectively to create the desired contrast and then all are switched off, resulting in an apparently narrow linewidth.