heterolytic bond-dissociation energy

The energy required to break a given bond of some specific compound by heterolysis. For the dissociation of a neutral molecule AB in the gas phase into A+ and B the heterolytic bond-dissociation energy D(A+B) is the sum of the bond dissociation energy, D(A–B), and the adiabatic ionization energy of the radical A· minus the electron affinity of the radical B·.
PAC, 1994, 66, 1077. 'Glossary of terms used in physical organic chemistry (IUPAC Recommendations 1994)' on page 1121 (https://doi.org/10.1351/pac199466051077)