Related Experiment Video
Updated: Apr 5, 2026

Setting Limits on Supersymmetry Using Simplified Models
Published on: November 15, 2013
The Absolute Shielding Constants of Heavy Nuclei: Resolving the Enigma of the (119)Sn Absolute Shielding
Elena Malkin1, Stanislav Komorovsky1, Michal Repisky1
1†Centre for Theoretical and Computational Chemistry, Department of Chemistry, University of Tromsø, N-9037 Tromsø, Norway.
Abstract:
We demonstrate that the apparent disagreement between experimental determinations and four-component relativistic calculations of the absolute shielding constants of heavy nuclei is due to the breakdown of the commonly assumed relation between the electronic contribution to the nuclear spin-rotation constants and the paramagnetic contribution to the NMR shielding constants. We demonstrate that this breakdown has significant consequences for the absolute shielding constant of (119)Sn, leading to errors of about 1000 ppm. As a consequence, we expect that many absolute shielding constants of heavy nuclei will be in need of revision.
More Related Videos
Related Concept Videos
Nuclear Stability
To hold positively charged protons together...
Diamagnetic Shielding of Nuclei: Local Diamagnetic Current
Nuclear Binding Energy
Atomic Radii and Effective Nuclear Charge
Radioactivity and Nuclear Equations
A nuclide of an element has a specific number of protons and...
The Energies of Atomic Orbitals

