Synthesis, complexing properties, and selectivity of bis(diphenylphosphorylmethyl) ethers of oligoethylene glycols. Crystal structure of 1,3-bis(diphenylphosphoryl)-2-oxapropane
作者:I. S. Ivanova、V. E. Baulin、I. N. Polyakova、E. N. Pyatova、E. S. Krivorot’ko、E. N. Galkina、A. Yu. Tsivadze
DOI:10.1134/s107036321711010x
日期:2017.11
A convenient method of synthesis of phosphoryl-substituted podands with dipehnylphosphorylmethyl end groups of the general formula Ph2P(O)CH2O(CH2CH2O)nCH2P(O)Ph2 (Ln, n = 0–6) is described. The stability constants of the complexes of the podands with alkali metal 2,4-dinitrophenolates were determined by conductometry. The ion-selective properties of the podands with respect to alkali and alkaline-earth