Dissociation Constants of Higher Alkyl Phosphate Esters, Phosphonic Acids, Phosphonous Acids, Phosphinic Acids and Carboxylic Acids

1950 ◽  
Vol 72 (4) ◽  
pp. 1859-1860 ◽  
Author(s):  
J. R. White
Keyword(s):  
Carboxylic Acids ◽  
Dissociation Constants ◽  
Phosphate Esters ◽  
Phosphonic Acids ◽  
Alkyl Phosphate ◽  
Phosphinic Acids

scholarly journals Protolysis and Complex Formation of Organophosphorus Compounds—Characterization by NMR-Controlled Titrations

Molecules ◽  
2019 ◽  
Vol 24 (18) ◽  
pp. 3238 ◽  
Author(s):  
Hägele
Keyword(s):  
Dissociation Constants ◽  
Organophosphorus Compounds ◽  
Chemical Shifts ◽  
2D Nmr ◽  
Coupling Constants ◽  
Phosphonic Acids ◽  
Specific Chemical ◽  
Hyphenated Technique ◽  
Aminophosphonic Acids ◽  
2D Nmr Spectra

Phosphonic acids, aminophosphonic acids, and phosphonocarboxylic acids are characterized by an advanced hyphenated technique, combining potentiometric titration with NMR spectroscopy. Automated measurements involving 13C, 19F and 31P nuclei lead to “pseudo 2D NMR” spectra, where chemical shifts or coupling constants are correlated with analytical parameters. Dissociation constants, stability constants, dynamic and specific chemical shifts are determined. Macroscopic and microscopic dissociation equilibria are discussed.

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