Radiation Physics and Chemistry, volume 124, pages 30-37

Structure and properties of the radiation-induced intermediates produced from HCN in noble gas matrices

Publication typeJournal Article
Publication date2016-07-01
Quartile SCImago
Q2
Quartile WOS
Q1
Impact factor2.9
ISSN0969806X
Radiation
Abstract
Abstract In this work we report the results of systematic studies on the radiation-induced transformations in HCN/Ng systems (Ng=Ne, Ar, Kr or Xe) at 7 K using a combination of FTIR and EPR spectroscopy. It was shown that HCN underwent efficient decomposition producing H atoms, CN radicals and HNC isomer. The thermally induced reactions of H atoms in different matrices result in the formation of two isomeric radicals, H 2 CN and trans-HCNH, the former being predominated. The temperature dependent dynamics of CN and H 2 CN radicals in a krypton matrix was observed by EPR spectroscopy in solid krypton. The vibrational frequencies, IR intensities and magnetic resonance parameters of H 2 CN and trans-HCNH radicals calculated at the CCSD(T) level are in reasonable agreement with the experimental results. It was found that HCNH radical could be effectively bleached with visible light. The comparison of experimental and computational data made it possible to assign a new vibrational band at 918 cm −1 in an Ar matrix (and the corresponding bands in Kr and Xe) to trans-HCNH radical. In addition, HKrCN was found in the case of krypton, whereas HXeCN and HXeNC were produced in solid xenon. The reaction mechanisms and contribution of different channels are discussed.

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Kameneva S. V., Tyurin D. A., Feldman V. I. Structure and properties of the radiation-induced intermediates produced from HCN in noble gas matrices // Radiation Physics and Chemistry. 2016. Vol. 124. pp. 30-37.
GOST all authors (up to 50) Copy
Kameneva S. V., Tyurin D. A., Feldman V. I. Structure and properties of the radiation-induced intermediates produced from HCN in noble gas matrices // Radiation Physics and Chemistry. 2016. Vol. 124. pp. 30-37.
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TY - JOUR
DO - 10.1016/j.radphyschem.2015.12.001
UR - https://doi.org/10.1016%2Fj.radphyschem.2015.12.001
TI - Structure and properties of the radiation-induced intermediates produced from HCN in noble gas matrices
T2 - Radiation Physics and Chemistry
AU - Tyurin, Daniil A
AU - Kameneva, Svetlana V
AU - Feldman, Vladimir I.
PY - 2016
DA - 2016/07/01 00:00:00
PB - Elsevier
SP - 30-37
VL - 124
SN - 0969-806X
ER -
BibTex
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BibTex Copy
@article{2016_Kameneva
author = {Daniil A Tyurin and Svetlana V Kameneva and Vladimir I. Feldman},
title = {Structure and properties of the radiation-induced intermediates produced from HCN in noble gas matrices},
journal = {Radiation Physics and Chemistry},
year = {2016},
volume = {124},
publisher = {Elsevier},
month = {jul},
url = {https://doi.org/10.1016%2Fj.radphyschem.2015.12.001},
pages = {30--37},
doi = {10.1016/j.radphyschem.2015.12.001}
}
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