Radiation Physics and Chemistry, volume 176, pages 109022

Radiation-induced transformations of isolated toluene molecules in low-temperature matrices: Towards better understanding of molecular radiation chemistry in condensed phases

Publication typeJournal Article
Publication date2020-11-01
Quartile SCImago
Q2
Quartile WOS
Q1
Impact factor2.9
ISSN0969806X
Radiation
Abstract
Abstract The transformations of isolated toluene molecules under X-ray radiolysis in solid noble gas matrices at 6 K were characterized by FTIR spectroscopy. It was found that the efficiency of the radiation-induced decomposition of toluene was generally comparable to that of benzene. Meanwhile, a remarkable matrix effect was observed: toluene is more stable than benzene in an argon matrix, whereas it becomes more sensitive in the case of xenon matrix. This result was ascribed to the increasing role of upper triplet excited states in a xenon matrix. In all the matrices two main radiolysis products observed at moderate absorbed doses were benzyl radical and 5-methylene-1,3-cyclohexadiene (MCHD). Benzyl radical predominates in all the cases, while the relative contribution of MCHD strongly decreases in the row Ar-Kr-Xe. On the basis of this comparison, the formation of MCHD was tentatively attributed to the rearrangement of excited primary toluene radical cations. Possible scheme of the radiation-induced processes is discussed.

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Lukianova I. A. et al. Radiation-induced transformations of isolated toluene molecules in low-temperature matrices: Towards better understanding of molecular radiation chemistry in condensed phases // Radiation Physics and Chemistry. 2020. Vol. 176. p. 109022.
GOST all authors (up to 50) Copy
Lukianova I. A., Sosulin I. S., Tyurin D. A., Feldman V. I., Feldman V. I. Radiation-induced transformations of isolated toluene molecules in low-temperature matrices: Towards better understanding of molecular radiation chemistry in condensed phases // Radiation Physics and Chemistry. 2020. Vol. 176. p. 109022.
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RIS Copy
TY - JOUR
DO - 10.1016/j.radphyschem.2020.109022
UR - https://doi.org/10.1016%2Fj.radphyschem.2020.109022
TI - Radiation-induced transformations of isolated toluene molecules in low-temperature matrices: Towards better understanding of molecular radiation chemistry in condensed phases
T2 - Radiation Physics and Chemistry
AU - Lukianova, Irina A
AU - Sosulin, Ilya S
AU - Tyurin, Daniil A
AU - Feldman, Vladimir I
AU - Feldman, Vladimir I.
PY - 2020
DA - 2020/11/01 00:00:00
PB - Elsevier
SP - 109022
VL - 176
SN - 0969-806X
ER -
BibTex
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BibTex Copy
@article{2020_Lukianova
author = {Irina A Lukianova and Ilya S Sosulin and Daniil A Tyurin and Vladimir I Feldman and Vladimir I. Feldman},
title = {Radiation-induced transformations of isolated toluene molecules in low-temperature matrices: Towards better understanding of molecular radiation chemistry in condensed phases},
journal = {Radiation Physics and Chemistry},
year = {2020},
volume = {176},
publisher = {Elsevier},
month = {nov},
url = {https://doi.org/10.1016%2Fj.radphyschem.2020.109022},
pages = {109022},
doi = {10.1016/j.radphyschem.2020.109022}
}
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