NMR frequency and magnetic dipole moment of (3)He nucleus

Karol Jackowski; Michał Jaszuński; Bohdan Kamieński; Marcin Wilczek

doi:10.1016/j.jmr.2008.04.005

NMR frequency and magnetic dipole moment of (3)He nucleus

J Magn Reson. 2008 Jul;193(1):147-9. doi: 10.1016/j.jmr.2008.04.005. Epub 2008 Apr 10.

Authors

Karol Jackowski¹, Michał Jaszuński, Bohdan Kamieński, Marcin Wilczek

Affiliation

¹ Laboratory of NMR Spectroscopy, Faculty of Chemistry, Warsaw University, Pasteura 1, 02093 Warsaw, Poland. kjack@chem.uw.edu.pl

PMID: 18442939
DOI: 10.1016/j.jmr.2008.04.005

Abstract

We present new gas-phase NMR spectra which relate the resonance frequency of (3)He nucleus to the resonance frequency of the proton in tetramethylsilane (TMS). We discuss the dependence of (3)He resonance frequency on the density of the solvent gas, and we consider in detail the absolute shielding scales of both nuclei. Finally, we analyse the accuracy of the results, using the relationship between the resonance frequencies, absolute shielding constants and magnetic dipole moments of (1)H and (3)He nuclei.