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Phosphonic acids and esters:VI. A taft equation correlation for alkylphosphonic acid

Authors
Journal
Journal of Organometallic Chemistry
0022-328X
Publisher
Elsevier
Publication Date
Volume
1
Issue
3
Identifiers
DOI: 10.1016/s0022-328x(00)85498-4

Abstract

Abstract The Taft equation has been found to apply satisfactorily to the first and second dissociations of alkylphosphonic acids. Observed deviations may be attributed to steric inhibition of solvation and imply markedly different solvations for the mono- and di-anions; the reaction constants for the two di-ssociations are nearly identical. Attempted assignments of σ * values to the -PO 3H − group by application of the relationship to bisphosphonic acids failed.

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