shielding constant, \(\sigma\)

https://doi.org/10.1351/goldbook.S05645
In NMR the difference between the external @M03686@ and the local @M03686@ at a resonating @N04256@ affected by the neighbouring electrons divided by the external flux density, \(\sigma =\frac{B_{0}\,-\,B}{B_{0}}\).
Source:
Green Book, 2nd ed., p. 25 [Terms] [Book]
Citation: 'shielding constant' in IUPAC Compendium of Chemical Terminology, 3rd ed. International Union of Pure and Applied Chemistry; 2006. Online version 3.0.1, 2019. https://doi.org/10.1351/goldbook.S05645 RIS BibTex EndNote
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Last revised: February 24, 2014