Quantitative experimental measure of the Lewis basicity of a molecule
\(\ce{B}\), expressed as the negative enthalpy of the formation of the 1:1 complex
\(\ce{B.SbCl5}\).
Note:
Donicity is often used as a measure of a solvent’s basicity.
Source:
PAC, 2022, 94, 353. 'Glossary of terms used in physical organic chemistry (IUPAC Recommendations 2021)' on page 406 (https://doi.org/10.1515/pac-2018-1010)