Phosphoryl-containing acidic podands as extractants for recovery of f-elements: 3. Dependence of the degree of association of podands on the nature of substituent and concentration in water-methanol solutions

被引：9

作者：

Timofeeva G.I. ^{[1
]}

Matveeva A.G. ^{[1
]}

Safiulina A.M. ^{[2
]}

Ivanets D.V. ^{[3
]}

Kudryavtsev E.M. ^{[3
,4
]}

Baulin V.E. ^{[5
,6
]}

Tsivadze A.Y. ^{[5
]}

机构：

[1] A. N. Nesmeyanov Institute of Organoelement Compounds, Russian Academy of Sciences, 28 ul. Vavilova, Moscow

[2] Uralchem Holding P.L.C., 10 Presnenskaya nab., Moscow

[3] Leading Research Institute of Chemical Technology, 33 Kashirskoe sh., Moscow

[4] National Research Nuclear University MEPhI, 31 Kashirskoe sh., Moscow

[5] A. N. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences, 4/31 Leninsky prosp., Moscow

[6] Institute of Physiologically Active Substances, Russian Academy of Sciences, 1 Severnyi proezd, Chernogolovka, 142432, Moscow Region

来源：

Russian Chemical Bulletin | 2015年 / 64卷 / 1期

基金：

俄罗斯基础研究基金会;

关键词：

associates; diffusion; diphosphonic acids; phosphoryl podands;

D O I：

10.1007/s11172-015-0847-0

中图分类号：

学科分类号：

摘要：

The degree of association of phosphoryl-containing acidic podands 2-[(HO)(RO)(O)P]-4R'-C6H4-(OCH2CH2)2-OC6H4-4-R'-2-[P(O)(OR)(OH)], where R = Et, R' = H (1); R = Bu, R' = Et (2) was determined by the diffusion method in 1,2-dichloroethane, 1,2-dichloroethane saturated with water, and water-methanol (1: 7 vol/vol) solutions. Under the same experimental conditions (25 υ'C, 0.01 M solutions in aqueous methanol), podand 1 exists as trimers (n = 3), whereas podand 2 forms associates consisting of about 30 particles. Unlike podand 1, the degree of association of podand 2 depends on the solute concentration. According to the IR spectral data for 1,2-dichloroethane solutions, associates of both podands are formed due to strong hydrogen bonds involving P(O)OH groups. © 2015 Springer Science+Business Media New York.

引用

页码：224 / 227

页数：3

共 2 条

[1] Phosphoryl-containing acidic podands as extractants for recovery of f-elements
Safiulina, A. M.
Matveeva, A. G.
Ivanets, D. V.
Kudryavtsev, E. M.
Grigor'ev, M. S.
Baulin, V. E.
Tsivadze, A. Yu.
RUSSIAN CHEMICAL BULLETIN, 2015, 64 (01) : 161 - 168
[2] Phosphoryl-containing acidic podands as extractants for recovery of f-elements: 1. Synthesis and comparison of podands different in polyether chain length and structure
Safiulina A.M.
Matveeva A.G.
Ivanets D.V.
Kudryavtsev E.M.
Grigoŕev M.S.
Baulin V.E.
Tsivadze A.Y.
Russian Chemical Bulletin, 2015, 64 (1) : 161 - 168

← 1 →