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

High resolution NMR spectroscopy was applied to precisely determine the Kr-83 nuclear magnetic dipole moment on the basis of new results available for nuclear magnetic shielding in krypton and helium-3 atoms. Small amounts of He-3 as the solutes and Kr-83 as the buffer gas were observed in He-3 and Kr-83 NMR spectra at the constant external field, B-0 = 11.7578 T. In each case, the resonance frequencies (nu(He) and nu(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 Kr-83 chemical shielding value, the nuclear magnetic moment could be determined with much better precision than ever before, (Kr-83) = -0.9707297(32)mu(N), with the improvement due to the greater accuracy of the spectral data. Copyright (C) 2014 John Wiley & Sons, Ltd.