For a diatomic molecule, the maximum vibrational energy that a molecule can have prior
to its
decomposition into the ground electronic states of the
constituent atoms (spectroscopic
bond-dissociation energy,
).
The
value is related to the chemical
dissociation energy:
,
where
is zero-point vibrational energy. This definition is usually extended to the
dissociation of polyatomic molecules into certain molecular fragments through homolytic or heterolytic
bond cleavages.
Source:
Cite as:
IUPAC. Compendium of Chemical Terminology, 2nd ed. (the "Gold Book"). Compiled by
A. D. McNaught and A. Wilkinson. Blackwell Scientific Publications, Oxford (1997).
XML on-line corrected version: http://goldbook.iupac.org (2006-) created by M. Nic,
J. Jirat, B. Kosata; updates compiled by A. Jenkins. ISBN 0-9678550-9-8.
https://doi.org/10.1351/goldbook.
