magic angle spinning nuclear magnetic resonance spectroscopy 23Na solid-state nuclear magnetic resonance spectroscopy 23Na magic angle spinning nuclear magnetic resonance spectroscopy CHMO:0001297 23Na MAS-NMR 2009-05-14T12:38:04Z Spectroscopy where the energy states of 23Na nuclei placed in a static magnetic field are interrogated by inducing transitions between the states via radio frequency irradiation. Each experiment consists of a sequence of radio frequency pulses with delay periods between them. Anisotropic interactions between nuclei, which are usually averaged by Brownian motion in liquid samples, cause significant line broadening in solid-state NMR, but can be averaged to zero by spinning the sample very rapidly at the magic angle (54.74° with respect to the direction of the magnetic field). https://orcid.org/0000-0001-5985-7429 23Na magic angle spinning (MAS) NMR 23Na MAS NMR 23Na-MAS-NMR