Gas‐phase 21Ne NMR studies and the nuclear magnetic dipole moment of neon‐21

Gas-phase (21) Ne nuclear magnetic resonance spectra were measured at the natural abundance of (21) Ne isotope for samples consisting of pressurized neon up to 60 bar at room temperature and applying the magnetic field of the strength B0 = 11.7574 T. It showed that the nuclear magnetic resonance frequency is linearly dependent on the density of gaseous neon. The resonance frequency was extrapolated to the zero-density point, and it permitted the determination of the (21) Ne nuclear magnetic moment, mu((21) Ne) = 0.6617774(10) muN . The present value of mu((21) Ne) is not influenced by the bulk magnetic susceptibility of neon and interactions between neon atoms; therefore, it is more precise and reliable than the previous result obtained for mu((21) Ne).