heterolysis (heterolytic)

https://doi.org/10.1351/goldbook.H02809
The cleavage of a @C01384@ so that both bonding electrons remain with one of the two fragments between which the bond is broken, e.g.
H02809.png
Heterolytic bond fission is a feature of many @M03989@ reactions in solution (e.g.@E02020@ substitution, @N04249@ substitution).
See also:
homolysis
,
heterolytic bond-dissociation energy
Source:
PAC, 1994, 66, 1077. (Glossary of terms used in physical organic chemistry (IUPAC Recommendations 1994)) on page 1120 [Terms] [Paper]