Unavailability of another electronic structure (different @ET07026@) of lower energy with the same number of electrons.
Source: PAC, 1999, 71, 1919. (Glossary of terms used in theoretical organic chemistry) on page 1938 [Terms] [Paper]
Citation: 'electronic stability' 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.ET07027 RISBibTexEndNote