Radiation-induced macrocycle cleavage in crown ether complexes with Sr(II) and Y(III) chlorides: A comparative study

Nesterov S.V., Zakurdaeva O.A., Sokolova N.A., Rychkov P.V., Feldman V.I.
Тип документаJournal Article
Дата публикации2020-11-01
Название журналаRadiation Physics and Chemistry
ИздательElsevier
КвартильQ2
ISSN0969806X
  • Radiation
Краткое описание
Abstract Macrocyclic 18-crown-6⋅SrCl2 and 18-crown-6⋅YCl3⋅4.25H2O complexes were synthesized, characterized by FTIR and DSC/TGA analysis and exposed to X-rays irradiation to study their resistance to polyether ring cleavage at early radiolysis stages by using EPR spectroscopy. Yttrium complex was found to be less stable in comparison with that of strontium as evidenced by a higher fraction of acyclic radicals resulted from the macrocycle destruction. An analysis of conformationally sensitive regions of FTIR spectra of 18-crown-6⋅YCl3⋅4.25H2O points to the strong distortion of the macrocycle symmetry that is one of the probable factors affecting the radiolytic cleavage of the polyether ring. The results obtained in the present study contribute to theoretical framework required to develop a radiation stable macrocyclic extractant for separation of the Sr/Y radionuclides.
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1. Nesterov S.V. и др. Radiation-induced macrocycle cleavage in crown ether complexes with Sr(II) and Y(III) chlorides: A comparative study // Radiation Physics and Chemistry. 2020. Т. 176. С. 109023.
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TY - JOUR

DO - 10.1016/j.radphyschem.2020.109023

UR - http://dx.doi.org/10.1016/j.radphyschem.2020.109023

TI - Radiation-induced macrocycle cleavage in crown ether complexes with Sr(II) and Y(III) chlorides: A comparative study

T2 - Radiation Physics and Chemistry

AU - Nesterov, Sergey V.

AU - Zakurdaeva, Olga A.

AU - Sokolova, Natalya A.

AU - Rychkov, Pavel V.

AU - Feldman, Vladimir I.

PY - 2020

DA - 2020/11

PB - Elsevier BV

SP - 109023

VL - 176

SN - 0969-806X

ER -

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@article{2020,

doi = {10.1016/j.radphyschem.2020.109023},

url = {https://doi.org/10.1016%2Fj.radphyschem.2020.109023},

year = 2020,

month = {nov},

publisher = {Elsevier {BV}},

volume = {176},

pages = {109023},

author = {Sergey V. Nesterov and Olga A. Zakurdaeva and Natalya A. Sokolova and Pavel V. Rychkov and Vladimir I. Feldman},

title = {Radiation-induced macrocycle cleavage in crown ether complexes with Sr({II}) and Y({III}) chlorides: A comparative study}

}

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Nesterov, Sergey V. et al. “Radiation-Induced Macrocycle Cleavage in Crown Ether Complexes with Sr(II) and Y(III) Chlorides: A Comparative Study.” Radiation Physics and Chemistry 176 (2020): 109023. Crossref. Web.