Bis(diphenylphosphorylmethyl) ethers of oligo(ethylene glycols) Ph2P(O)CH2O(CH2CH2O)nCH2P(O)Ph2 (n = 1–3): Complexation and extraction of rare-earth elements. Crystal structure of [NdL3(NO3)3(H2O)]


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Abstract

Bis(diphenylphosphorylmethyl) ethers of oligo(ethylene glycols) Ph2P(O)CH2O(CH2CH2O)nCH2P(O)Ph2 (Ln, where n = 1-3) and coordination compounds of Nd and Er with L3 are synthesized. The dependence of extractability of L1-3 on the structure of complexes in the 1,1,7-trihydrododecafluoroheptanol–water system at a concentration of HNO3 0.5-6.0 mol/L is determined. The crystal structure of [NdL3(NO3)3(H2O)] is studied by X-ray diffraction.

About the authors

E. S. Krivorot’ko

Frumkin Institute of Physical Chemistry and Electrochemistry

Author for correspondence.
Email: Ekaterina.krivorotko@mail.ru
Russian Federation, Leninskii pr. 31, Moscow, 119991

I. N. Polyakova

Kurnakov Institute of General and Inorganic Chemistry

Email: Ekaterina.krivorotko@mail.ru
Russian Federation, Leninskii pr. 31, Moscow, 119991

I. S. Ivanova

Frumkin Institute of Physical Chemistry and Electrochemistry; Kurnakov Institute of General and Inorganic Chemistry

Email: Ekaterina.krivorotko@mail.ru
Russian Federation, Leninskii pr. 31, Moscow, 119991; Leninskii pr. 31, Moscow, 119991

E. N. Pyatova

Frumkin Institute of Physical Chemistry and Electrochemistry; Kurnakov Institute of General and Inorganic Chemistry

Email: Ekaterina.krivorotko@mail.ru
Russian Federation, Leninskii pr. 31, Moscow, 119991; Leninskii pr. 31, Moscow, 119991

S. V. Demin

Kurnakov Institute of General and Inorganic Chemistry

Email: Ekaterina.krivorotko@mail.ru
Russian Federation, Leninskii pr. 31, Moscow, 119991

V. I. Zhilov

Kurnakov Institute of General and Inorganic Chemistry

Email: Ekaterina.krivorotko@mail.ru
Russian Federation, Leninskii pr. 31, Moscow, 119991

V. E. Baulin

Frumkin Institute of Physical Chemistry and Electrochemistry; Institute of Physiologically Active Substances

Email: Ekaterina.krivorotko@mail.ru
Russian Federation, Leninskii pr. 31, Moscow, 119991; Severnyi proezd 1, Chernogolovka, Noginskii raion, Moscow oblast, 142432

A. Yu. Tsivadze

Frumkin Institute of Physical Chemistry and Electrochemistry

Email: Ekaterina.krivorotko@mail.ru
Russian Federation, Leninskii pr. 31, Moscow, 119991

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