Nuclear relaxation in an electric field enables the determination of isotropic magnetic shielding
Journal Article
·
· Journal of Chemical Physics
- Faculty of Chemistry, University of Warsaw, Pasteura 1, 02-093 Warsaw (Poland)
It is shown that in contrast to the case of nuclear relaxation in a magnetic field B, simultaneous application of the magnetic field B and an additional electric field E causes transverse relaxation of a spin-1/2 nucleus with the rate proportional to the square of the isotropic part of the magnetic shielding tensor. This effect can contribute noticeably to the transverse relaxation rate of heavy nuclei in molecules that possess permanent electric dipole moments. Relativistic quantum mechanical computations indicate that for {sup 205}Tl nucleus in a Pt-Tl bonded complex, Pt(CN){sub 5}Tl, the transverse relaxation rate induced by the electric field is of the order of 1 s{sup −1} at E = 5 kV/mm and B = 10 T.
- OSTI ID:
- 22678979
- Journal Information:
- Journal of Chemical Physics, Journal Name: Journal of Chemical Physics Journal Issue: 6 Vol. 145; ISSN JCPSA6; ISSN 0021-9606
- Country of Publication:
- United States
- Language:
- English
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