nuclear quadrupole moment

in Mössbauer spectroscopy
https://doi.org/10.1351/goldbook.N04238
A parameter which describes the effective shape of the equivalent ellipsoid of the nuclear charge distribution, \(Q>0\) for prolate (e.g. $\ce{^{57}Fe}$, $\ce{^{19}7Au}$); \(Q<0\) for oblate (e.g. $\ce{^{119}Sn}$, $\ce{^{129}I}$) nuclei.
Source:
PAC, 1976, 45, 211. (Nomenclature and Conventions for Reporting Mössbauer Spectroscopic Data) on page 214 [Terms] [Paper]
Citation: 'nuclear quadrupole moment' in IUPAC Compendium of Chemical Terminology, 5th ed. International Union of Pure and Applied Chemistry; 2025. Online version 5.0.0, 2025. https://doi.org/10.1351/goldbook.N04238 RIS BibTex EndNote
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