Estudo dos princípios básicos de ressonância magnética nuclear do estado sólido

Abstract

The Technique of Nuclear Magnetic Resonance Spectroscopy of solid samples has been widely used in various areas of study (chemistry, physics, pharmacy, engineering, etc.) due to the ease of obtaining more precise information on the structure, chemical composition, the dynamic behavior and the morphology of soluble or insoluble substances without pre-treatment, thus minimizing analysis time. However, the NMR of solid materials lack of good spectral resolution due to the decrease in molecular motion that generates large spectral problems, arising from the dipolar coupling, relaxation and chemical shift anisotropy. However, there have been many advances in the technique, in order to obtain well-resolved spectra, with applications of techniques such as the magic angle spin (MAS), cross-polarization (CP) and dipole decoupling (DD), as well as the combination of these.