Bunnett–Olsen equations

The equations for the relation between $log 10 ( [SH + ] [S] ) + H 0$ and $log 10 [H + ] + H 0$ for base S in aqueous mineral acid solution, where $H 0$ is Hammett's acidity function and $log 10 [H + ] + H 0$ represents the activity function $log 10 ( γ S γ H + ) γ SH +$ for the nitroaniline reference bases to build $H 0$ .

$log 10 ( [SH + ] [S] ) − log 10 [H + ] = ( Φ − 1 ) ( log 10 [H + ] + H 0 ) + p K SH +$

$log 10 ( [SH + ] [S] ) + H 0 = Φ ( log 10 [H + ] + H 0 ) + p K SH +$

See also: Cox–Yates equation

Source:

PAC, 1994, 66, 1077 (Glossary of terms used in physical organic chemistry (IUPAC Recommendations 1994)) on page 1091

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IUPAC. Compendium of Chemical Terminology, 2nd ed. (the "Gold Book"). Compiled by A. D. McNaught and A. Wilkinson. Blackwell Scientific Publications, Oxford (1997). XML on-line corrected version: http://goldbook.iupac.org (2006-) created by M. Nic, J. Jirat, B. Kosata; updates compiled by A. Jenkins. ISBN 0-9678550-9-8. https://doi.org/10.1351/goldbook.

Last update: 2014-02-24; version: 2.3.3.

DOI of this term: https://doi.org/10.1351/goldbook.B00758.

Original PDF version: http://www.iupac.org/goldbook/B00758.pdf. The PDF version is out of date and is provided for reference purposes only. For some entries, the PDF version may be unavailable.

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