Bunnett–Olsen equations
The equations for the relation between Math - ei and Math - ei for base S in aqueous mineral acid solution, where Math - text is Hammett's acidity function and Math - ei represents the activity function Math - ei for the nitroaniline reference bases to build Math - text.
Math - e
Math - e
See also: Cox–Yates equation
PAC, 1994, 66, 1077 (Glossary of terms used in physical organic chemistry (IUPAC Recommendations 1994)) on page 1091