⁸³Kr nuclear magnetic moment in terms of that of ³He

Abstract

High resolution NMR spectroscopy was applied to precisely determine the (83)Kr nuclear magnetic dipole moment on the basis of new results available for nuclear magnetic shielding in krypton and helium-3 atoms. Small amounts of (3)He as the solutes and (83)Kr as the buffer gas were observed in (3)He and (83)Kr NMR spectra at the constant external field, B0 = 11.7578 T. In each case, the resonance frequencies (ν(He) and ν(Kr)) were linearly dependent on the density of gaseous solvent. The extrapolation of experimental points to the zero density of gaseous krypton allowed for the evaluation of both resonance frequencies free from intermolecular interactions. By combining these measurements with the recommended (83)Kr chemical shielding value, the nuclear magnetic moment could be determined with much better precision than ever before, μ((83)Kr) = -0.9707297(32)μN, with the improvement due to the greater accuracy of the spectral data.

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

“…Using similar methodology to that described in this paper, the magnetic moments of nuclei of other noble gases (He, Kr, and Xe) were determined previously . Their magnetic moments, which were found from the gas‐phase NMR studies, and our result for 21 Ne are given in Table .…”

Explorations of Magnetic Properties of Noble Gases: The Past, Present, and Future

“…Afterward, NMR investigations gave more accurate results: µ( 83 Kr) = −0.9707295µ N [62] and µ( 83 Kr) = −0.967221 µ N [63]. The 3 He and 83 Kr NMR frequencies were only recently measured using an advanced technology pulse FT spectrometer in 3 He/Kr gaseous mixtures at different densities [64]. Selected krypton spectra are shown in Figure 3.…”

129Xe and 131Xe nuclear magnetic dipole moments from gas phase NMR spectra

“…[8][9][10][11][12] The main advantage of this approach lies in the characteristic gaseous features. Each physicochemical gas property can be expressed as virial expansion in terms of density (concentration).…”

“…Recently, nuclear magnetic moments of some nuclei were revisited mostly by the NMR measurements employing gas phase experiments and the comparison with the 1 H magnetic moment . The main advantage of this approach lies in the characteristic gaseous features.…”