Institute of Inorganic Chemistry and Structural Chemistry, Heinrich-Heine-University Düsseldorf, Universitätsstraße 1, D-40225 Düsseldorf, Germany.
Molecules. 2019 Sep 5;24(18):3238. doi: 10.3390/molecules24183238.
Phosphonic acids, aminophosphonic acids, and phosphonocarboxylic acids are characterized by an advanced hyphenated technique, combining potentiometric titration with NMR spectroscopy. Automated measurements involving C, F and P 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.
膦酸、氨基膦酸和膦羧酸的特点是采用了先进的键合技术，将电位滴定与 NMR 光谱相结合。涉及 C、F 和 P 核的自动测量可产生“伪 2D NMR”光谱，其中化学位移或偶合常数与分析参数相关联。测定离解常数、稳定常数、动态和特定化学位移。讨论了宏观和微观离解平衡。
