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Keywords = phosphonocarboxylic acids

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26 pages, 9496 KB  
Perspective
Protolysis and Complex Formation of Organophosphorus Compounds—Characterization by NMR-Controlled Titrations
by Gerhard Hägele
Molecules 2019, 24(18), 3238; https://doi.org/10.3390/molecules24183238 - 5 Sep 2019
Cited by 8 | Viewed by 4190
Abstract
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 [...] Read more.
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. Full article
(This article belongs to the Special Issue Organophosphorus Chemistry 2018)
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