Acid-base properties of α-aminomethylphosphine oxides

被引:6
作者
Cherkasov, R. A. [1 ]
Garifzyanov, A. R. [1 ]
Devyatov, F. V. [1 ]
Kurnosova, N. V. [1 ]
Rahmaeva, A. I. [1 ]
Davletshin, R. R. [1 ]
机构
[1] Kazan Privolzhskii Fed Univ, Kazan 420008, Tatarstan, Russia
关键词
Ionization Constant; Protolytic Equilibrium; Aminophosphoryl Compound; Methylphosphine Oxide; Aminophosphine Oxide;
D O I
10.1134/S107036321209006X
中图分类号
O6 [化学];
学科分类号
0703 ;
摘要
Ionization constants of a series of aminomethylphosphine oxides and respective amino precursors, as well as their isostructural amino phosphonates in water-2-propanol or water medium were determined. The main regularities of the effect of the phosphoryl group on the protolytic equilibria involving mono- and bisphosphorylated amines and diamines were found. The environment effect on the ionization constants of hydrophilic aminophosphoryl compounds and amines was estimated quantitatively. The relationship between the dissociation constants of aminophosphoryl compounds and related constants of amino precursors in the framework of the principle of linearity of free energies was demonstrated.
引用
收藏
页码:1492 / 1503
页数:12
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