Lewis basicity

The thermodynamic tendency of a substance to act as a @L03511@. Comparative measures of this property are provided by the equilibrium constants for @L03510@ formation for a series of Lewis bases with a common reference @L03508@.
See also:
donor number (DN)
PAC, 1994, 66, 1077. (Glossary of terms used in physical organic chemistry (IUPAC Recommendations 1994)) on page 1135 [Terms] [Paper]