Acidic phosphoryl podands as components of extraction chromatography material for selective extraction of promethium-147

Баулин, В. Е.; Калашникова, И. П.; Kovalenko, Olga; Баулин, Д. В.; Usolkin, A. N.; Tsivadze, А. Yu.

doi:10.1134/s2070205116060083

Cited by 8 publications

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References 15 publications

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“…Недавно установлено, что моноалкиловые полуэфиры диэтиленгликолевые производные L 1 являются весьма эффективными экстрагентами, количественно извлекающими Th(IV) и U(VI) в присутствии лантанидов из разбавленных растворов азотной кислоты [28][29]. На основе L 1 разработаны экстракционно-хроматографические материалы импрегнированного типа для селективного извлечения промышленно значимых радионуклидов 99-Мо [31] и 147-Pm из азотнокислых растворов [32]. Более того, фосфорилподанд L 1 является весьма перспективным соединением для разработки бинарных экстрагентов для эффективного извлечения Th из азотнокислых растворов [33].…”

Section: Introductionunclassified

1,5-bis[2-(dioxyphosphoryl)-4-ethylphenoxy]-3-oxapentane and its Analogs as Promising Organic Ligands for Copper(II) Binding s

Баулин

Цебрикова

Баулин

et al. 2018

BMCRM

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The dissociation and complexation ability toward Cu(II) of acidic type phosphoryl-containing podands – tetrabasic 1,5-bis[2-(dioxyphosphoryl)-4-ethylphenoxy]-3-oxapentane (L1), dibasic – 1,5-bis[2-(ethoxyhydroxyphosphoryl)-4-ethylphenoxy]-pentane (L2) and also of their carboxylic analogue dibasic 1,5-bis[2-(oxycarbonylphenoxy)]-3-oxapentane (L3) were investigated by spectrophotometric, conductometric and potentiometric methods in water in the presence 5% of dimethyl formamide. Spectrophotometric and conductometric titration data provided evidence for formation of 1:1 (M:L) complexes. The dissociation constants were determined and species distribution diagrams for studied acids were obtained by potentiometric method. These data are of interest for the design of binary extragents and medicinal drugs based on the studied ligands. The stability constants of Cu(II) 1:1 (M:L) complexes were estimated. Analysis of the titration curves suggests that deprotonation forms of the studied ligands react with Cu2+. Substitution of carboxylic groups in acyclic polyesters by phosphonic results in increased stability of the copper(II) complexes

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