Photochemistry of Radical Cations of Some Organic Oxygen-Containing Compounds in Frozen Matrices

IF 0.7 Q4 CHEMISTRY, MULTIDISCIPLINARY Moscow University Chemistry Bulletin Pub Date : 2024-07-11 DOI:10.3103/S0027131424700111
M. Ya. Melnikov, O. I. Gromov, V. I. Pergushov, D. A. Pomogailo, I. D. Sorokin
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Abstract

The review is dedicated to the photochemical reactions of radical cations (RC) of various organic oxygen-containing compounds stabilized in low-temperature matrices. The nature of RC and the products of their photochemical reactions has been established via quantum chemistry, electron paramagnetic resonance (EPR) and low-temperature optical spectroscopy. Depending on the structure of the precursor molecule, various mechanisms of photoconversion arise for these RC: charge transfer to matrix molecules, hydrogen atom and proton transfer, isomerization, dissociation. This study allowed us to posit that there is no correlation between the structure of the molecule of the precursor molecule and the variety of available phototransformation channels for the corresponding RC in frozen matrices.

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冷冻基质中某些有机含氧化合物的自由基阳离子的光化学作用
摘要 本综述专门讨论了稳定在低温基质中的各种有机含氧化合物的自由基阳离子(RC)的光化学反应。通过量子化学、电子顺磁共振(EPR)和低温光学光谱,确定了 RC 及其光化学反应产物的性质。根据前体分子的结构,这些 RC 会产生各种光化学转换机制:电荷转移到基质分子、氢原子和质子转移、异构化、解离。通过这项研究,我们得出结论:前体分子的结构与冷冻基质中相应 RC 的各种可用光转化途径之间并无关联。
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来源期刊
Moscow University Chemistry Bulletin
Moscow University Chemistry Bulletin CHEMISTRY, MULTIDISCIPLINARY-
CiteScore
1.30
自引率
14.30%
发文量
38
期刊介绍: Moscow University Chemistry Bulletin is a journal that publishes review articles, original research articles, and short communications on various areas of basic and applied research in chemistry, including medical chemistry and pharmacology.
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