INFLUENCE OF INTRAMOLECULAR DONOR-ACCEPTOR INTERACTIONS ON RADIOLYSIS OF ORGANIC COMPOUNDS: EFFECTS IN ACETYLACETONE

S. I. Vlasov; Власов С. И.; A. V. Ponomarev; Пономарев А. В.; B. G. Ershov; Ершов Б. Г.

doi:10.31857/S2686953523600174

INFLUENCE OF INTRAMOLECULAR DONOR-ACCEPTOR INTERACTIONS ON RADIOLYSIS OF ORGANIC COMPOUNDS: EFFECTS IN ACETYLACETONE

Autores: Vlasov S.I.¹, Ponomarev A.V.¹, Ershov B.G.¹
Afiliações:
1. A.N. Frumkin Institute of Physical Chemistry and Electrochemistry, Russian Academy of Sciences
Edição: Volume 510, Nº 1 (2023)
Páginas: 69-73
Seção: PHYSICAL CHEMISTRY
URL: https://rjeid.com/2686-9535/article/view/651977
DOI: https://doi.org/10.31857/S2686953523600174
EDN: https://elibrary.ru/YRXCAM
ID: 651977

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Resumo
Sobre autores
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Resumo

Using acetylacetone as an example, it was shown that the intramolecular hydrogen bond significantly affects the radiolytic transformations of organic compounds, suppressing the transfer of a proton from the primary radical cation to the molecule, and also contributing to the cleavage of the C–OH bond in the enol form. Due to these effects, the main heavy product of radiolysis at 295 K is 4-oxopent-2-en-2-yl acetate. Under boiling conditions (413 K), hydrogen bonds are eliminated, leading to the predominant formation of 4-hydroxy-2-pentanone, which is not detected at 295 K.

Palavras-chave

acetylacetone, tautomers, hydrogen bond, radiolysis, proton transfer, radical recombination

Bibliografia

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