Peculiarities in the Radiolysis of β-Diketones
- Autores: Vlasov S.1, Smirnova A.2, Ponomarev A.1, Uchkina D.1, Sholokhova A.1, Mitrofanov A.2
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Afiliações:
- Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences
- Faculty of Chemistry, Moscow State University
- Edição: Volume 57, Nº 3 (2023)
- Páginas: 218-223
- Seção: РАДИАЦИОННАЯ ХИМИЯ
- URL: https://journals.rcsi.science/0023-1193/article/view/140001
- DOI: https://doi.org/10.31857/S0023119323030166
- EDN: https://elibrary.ru/KIFSPQ
- ID: 140001
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Resumo
Intramolecular hydrogen bonding has a significant effect on the radiolytic transformations of β- diketones. Using the radiolysis of acetylacetone as an example, it has been shown that a hydrogen bond between the hydroxyl and carbonyl in an enol prevents proton transfer from the primary radical cation to the neighboring molecule. As a result, the radiolytic formation of a keto alcohol (4-hydroxy-2-pentanone) was not observed at room temperature, but it was effective under boiling conditions. The intramolecular hydrogen
bond contributed to a significant structural stress in the radical cation, which increased the yield of C–OH bond cleavage and the inhomogeneous formation of acetate (4-oxopent-2-en-2-yl acetate) under normal conditions
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Sobre autores
S. Vlasov
Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences
Email: ponomarev@ipc.rssi.ru
Moscow, 119071 Russia
A. Smirnova
Faculty of Chemistry, Moscow State University
Email: ponomarev@ipc.rssi.ru
Moscow, 119991 Russia
A. Ponomarev
Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences
Email: ponomarev@ipc.rssi.ru
Moscow, 119071 Russia
D. Uchkina
Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences
Email: ponomarev@ipc.rssi.ru
Moscow, 119071 Russia
A. Sholokhova
Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences
Email: ponomarev@ipc.rssi.ru
Moscow, 119071 Russia
A. Mitrofanov
Faculty of Chemistry, Moscow State University
Autor responsável pela correspondência
Email: ponomarev@ipc.rssi.ru
Moscow, 119991 Russia
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