Radiation Physics and Chemistry, volume 81, issue 9, pages 1434-1439

Effect of molecular structure on fragmentation of isolated organic molecules in solid rare gas matrices

Kobzarenko A V 1, 2, 3
Feldman V I
Sukhov F F 1, 2, 3
Orlov A. Yu. 4
KOVALEV G. V. 1, 2, 3
Baranova I A 1, 2, 3
Publication typeJournal Article
Publication date2012-09-01
Quartile SCImago
Q2
Quartile WOS
Q1
Impact factor2.9
ISSN0969806X
Radiation
Abstract
Abstract The effect of excess energy on the primary radical cations of bifunctional carbonyl compounds and aliphatic alkynes was simulated by matrix isolation method using rare gas matrices with various ionization potentials. The formation of fragmentation products was monitored by EPR and FTIR spectroscopy. It was shown that the radical cations of bifunctional compounds (CH 3 OCH 2 COCH 3 and CH 3 COCOCH 3 ) dissociated effectively yielding CH 3 radicals upon irradiation in solid argon matrix at T ≤16 K. In addition to isolated methyl radicals, the radical pairs consisting of two methyl radicals separated by two CO molecules were detected in the case of diacetyl. The probability of fragmentation decreases with the decreasing excess energy by switching from Ar to Xe. In general, bifunctional molecules were found to be less stable to “hot” ionic fragmentation in low-temperature solids in comparison with simple prototype compounds. In the case of alkynes of the RCCH type, a noticeable yield of fragmentation products was observed when R=–C(CH 3 ) 3 , but it was negligible for R=–CH 3 . The mechanisms of “hot” reactions and excess energy relaxation are discussed.

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Kobzarenko A. V. et al. Effect of molecular structure on fragmentation of isolated organic molecules in solid rare gas matrices // Radiation Physics and Chemistry. 2012. Vol. 81. No. 9. pp. 1434-1439.
GOST all authors (up to 50) Copy
Kobzarenko A. V., Sukhov F. F., Orlov A. Y., KOVALEV G. V., Baranova I. A., Feldman V. I., Feldman V. I. Effect of molecular structure on fragmentation of isolated organic molecules in solid rare gas matrices // Radiation Physics and Chemistry. 2012. Vol. 81. No. 9. pp. 1434-1439.
RIS |
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RIS Copy
TY - JOUR
DO - 10.1016/j.radphyschem.2012.01.004
UR - https://doi.org/10.1016%2Fj.radphyschem.2012.01.004
TI - Effect of molecular structure on fragmentation of isolated organic molecules in solid rare gas matrices
T2 - Radiation Physics and Chemistry
AU - Kobzarenko, A V
AU - Sukhov, F F
AU - Orlov, A. Yu.
AU - KOVALEV, G. V.
AU - Baranova, I A
AU - Feldman, V I
AU - Feldman, Vladimir I.
PY - 2012
DA - 2012/09/01 00:00:00
PB - Elsevier
SP - 1434-1439
IS - 9
VL - 81
SN - 0969-806X
ER -
BibTex |
Cite this
BibTex Copy
@article{2012_Kobzarenko
author = {A V Kobzarenko and F F Sukhov and A. Yu. Orlov and G. V. KOVALEV and I A Baranova and V I Feldman and Vladimir I. Feldman},
title = {Effect of molecular structure on fragmentation of isolated organic molecules in solid rare gas matrices},
journal = {Radiation Physics and Chemistry},
year = {2012},
volume = {81},
publisher = {Elsevier},
month = {sep},
url = {https://doi.org/10.1016%2Fj.radphyschem.2012.01.004},
number = {9},
pages = {1434--1439},
doi = {10.1016/j.radphyschem.2012.01.004}
}
MLA
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MLA Copy
Kobzarenko, A. V., et al. “Effect of molecular structure on fragmentation of isolated organic molecules in solid rare gas matrices.” Radiation Physics and Chemistry, vol. 81, no. 9, Sep. 2012, pp. 1434-1439. https://doi.org/10.1016%2Fj.radphyschem.2012.01.004.
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