Synthesis,complexing properties,and selectivity of bis(diphenylphosphorylmethyl) ethers of oligoethylene glycols. Crystal structure of 1,3-bis(diphenylphosphoryl)-2-oxapropane |
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| Authors: | I. S. Ivanova V. E. Baulin I. N. Polyakova E. N. Pyatova E. S. Krivorot’ko E. N. Galkina A. Yu. Tsivadze |
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| Affiliation: | 1.Kurnakov Institute of General and Inorganic Chemistry,Russian Academy of Sciences,Moscow,Russia;2.Frumkin Institute of Physical Chemistry and Electrochemistry,Russian Academy of Sciences,Moscow,Russia;3.Institute of Physiologically Active Substances,Russian Academy of Sciences,Chernogolovka,Russia |
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| Abstract: | 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 metal cations were assessed by ionometry. The crystal structure of 1,3-bis(diphenylphosphoryl)-2-oxapropane was established by X-ray diffraction analysis. |
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