Elsevier
Radiation Physics and Chemistry
,  volume 176 ,  pages 109023

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

Publication type: Journal Article
Publication date: 2020-11-01
Elsevier
scimago Q2
wos Q1
SJR: 0.543
CiteScore: 5.6
Impact factor: 3.3
ISSN: 0969806X, 18790895
Radiation
Abstract
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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Nesterov S. et al. Radiation-induced macrocycle cleavage in crown ether complexes with Sr(II) and Y(III) chlorides: A comparative study // Radiation Physics and Chemistry. 2020. Vol. 176. p. 109023.
GOST all authors (up to 50) Copy
Nesterov S., Zakurdaeva O. A., Sokolova N. A., Rychkov P. V., Feldman V. I. Radiation-induced macrocycle cleavage in crown ether complexes with Sr(II) and Y(III) chlorides: A comparative study // Radiation Physics and Chemistry. 2020. Vol. 176. p. 109023.
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RIS Copy
TY - JOUR
DO - 10.1016/j.radphyschem.2020.109023
UR - https://linkinghub.elsevier.com/retrieve/pii/S0969806X20304084
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
AU - Zakurdaeva, Olga A
AU - Sokolova, Natalya A
AU - Rychkov, Pavel V
AU - Feldman, Vladimir I.
PY - 2020
DA - 2020/11/01
PB - Elsevier
SP - 109023
VL - 176
SN - 0969-806X
SN - 1879-0895
ER -
BibTex
Cite this
BibTex (up to 50 authors) Copy
@article{2020_Nesterov,
author = {Sergey 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},
journal = {Radiation Physics and Chemistry},
year = {2020},
volume = {176},
publisher = {Elsevier},
month = {nov},
url = {https://linkinghub.elsevier.com/retrieve/pii/S0969806X20304084},
pages = {109023},
doi = {10.1016/j.radphyschem.2020.109023}
}