Radiation Physics and Chemistry, volume 87, pages 40-45
Localization of radiation damages in X-rays irradiated cis-syn-cis-dicyclohexano-18-crown-6 and its inclusion complex with BaCl2
Publication type: Journal Article
Publication date: 2013-06-01
Journal:
Radiation Physics and Chemistry
Quartile SCImago
Q2
Quartile WOS
Q1
Impact factor: 2.9
ISSN: 0969806X
Radiation
Abstract
Abstract For the first time, structures of radical intermediates generated upon low temperature (77 K) X-rays radiolysis of “free” dicyclohexano-18-crown-6 ( cis-syn-cis -isomer, DCH18C6) and its inclusion complex with barium chloride (DCH18C6·BaCl 2 ) were identified using EPR spectroscopy. A set of radicals originated from polyether and cyclohexyl rings was detected in DCH18C6·BaCl 2 complex and “free” crown ether DCH18C6 irradiated at 77 K. Cyclohexyl, macrocyclic O CHCH 2 and acyclic CHC(H)O radicals were suggested to be formed at early stages of radiolysis in both investigated compounds, and the fraction of macrocyclic O CHCH 2 radicals was predominant immediately after irradiation at 77 K. Additionally, an effect of barium cation on post-radiation reactions of the radicals in irradiated DCH18C6·BaCl 2 complex upon its subsequent thermal annealing at temperature above 333 K was found. In particular, the analysis of EPR spectrum of the irradiated complex annealed at 333–413 K implied a presence of signal from acyclic cyclohexanonyl radicals, which may presumably resulted from rearrangement of cyclic α-alkoxycyclohexyl radical precursors. This post-radiation reaction may contribute to accumulation of acyclic radiolytic products in the irradiated complex when comparing with radiolysis of free DCH18C6. The results obtained are essential for understanding the peculiarities of radiation resistance of extraction and sorption systems based on the crown ether under real conditions of radioactive waste reprocessing.
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Zakurdaeva O. A., Nesterov S., Feldman V. I. Localization of radiation damages in X-rays irradiated cis-syn-cis-dicyclohexano-18-crown-6 and its inclusion complex with BaCl2 // Radiation Physics and Chemistry. 2013. Vol. 87. pp. 40-45.
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Zakurdaeva O. A., Nesterov S., Feldman V. I. Localization of radiation damages in X-rays irradiated cis-syn-cis-dicyclohexano-18-crown-6 and its inclusion complex with BaCl2 // Radiation Physics and Chemistry. 2013. Vol. 87. pp. 40-45.
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TY - JOUR
DO - 10.1016/j.radphyschem.2013.02.006
UR - https://doi.org/10.1016%2Fj.radphyschem.2013.02.006
TI - Localization of radiation damages in X-rays irradiated cis-syn-cis-dicyclohexano-18-crown-6 and its inclusion complex with BaCl2
T2 - Radiation Physics and Chemistry
AU - Zakurdaeva, Olga A
AU - Nesterov, Sergey
AU - Feldman, Vladimir I.
PY - 2013
DA - 2013/06/01 00:00:00
PB - Elsevier
SP - 40-45
VL - 87
SN - 0969-806X
ER -
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@article{2013_Zakurdaeva,
author = {Olga A Zakurdaeva and Sergey Nesterov and Vladimir I. Feldman},
title = {Localization of radiation damages in X-rays irradiated cis-syn-cis-dicyclohexano-18-crown-6 and its inclusion complex with BaCl2},
journal = {Radiation Physics and Chemistry},
year = {2013},
volume = {87},
publisher = {Elsevier},
month = {jun},
url = {https://doi.org/10.1016%2Fj.radphyschem.2013.02.006},
pages = {40--45},
doi = {10.1016/j.radphyschem.2013.02.006}
}