Výsledky vyhledávání - "V. I. Porkhun"

Chemically Induced Dynamic Nuclear Polarization in Photoreduction Reactions of 1,4-Benzoquinone in an Acidic Medium

Autor: V. I. Porkhun, A. V. Arshinov, A. G. Podoprigora

Publikováno v: Russian Journal of General Chemistry. 91:593-595

Chemically induced dynamic nuclear polarization during photolysis of unsubstituted benzoquinone in an acidic medium was observed upon reduction with tertiary butyl alcohol. It was found that protonated triplet quinone molecules accept an electron fro

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::9f1d94c0b345756d284f0650768d8b95
https://doi.org/10.1134/s1070363221040022

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The study of the elementary acts of a reversible photochemical reaction generating quasistationary radio emission in a magnetic field

Autor: V. I. Porkhun, Yu. V. Aristova

Publikováno v: Russian Chemical Bulletin. 68:565-569

Constant coherent radio frequency radiation in the course of a reversible photochemical reaction of a 8-hydroxy-6-dibenzofuran—deuteromethanol system was detected and investigated. The observed effect is one of the few examples of the generation of

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::81a8af4abe14f964e3380285bbdf36a0
https://doi.org/10.1007/s11172-019-2455-x

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Mechanisms of photochemical reactions of para-benzoquinones with thiols

Autor: Yu. V. Aristova, V. I. Porkhun, I. L. Gonik

Publikováno v: Russian Chemical Bulletin. 67:1364-1368

The mechanisms of quinone reduction by thiols containing α-hydrogen atoms were established using chemically induced dynamic nuclear polarization effects. It was found that substituents in the quinone nucleus change the nature of the primary radical

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::b1486c1d91150a9ee5b0df7737a1f4a2
https://doi.org/10.1007/s11172-018-2225-1

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Elementary Stages of Photochemical Reactions of Substituted 2,6-Diphenyl-para-benzoquinones with Thiols

Autor: D. N. Gurulev, L. V. Palatkina, V. I. Porkhun, E. V. Porkhun

Publikováno v: Russian Journal of General Chemistry. 88:1580-1583

Using the effects of chemical polarization of nuclei, mechanism and elementary stages of photochemical reduction of 2,6-diphenyl-1,4-benzoquinone with thiols have been elucidated. The studied quinone is reduced with ethanethiol in two stages (transfe

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::a34f8bf3634d586581fd9fdfdd59ee49
https://doi.org/10.1134/s1070363218080042

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Development of Chemical Polarization of Nuclei During Photolysis of Benzoquinones with Aromatic Amines

Autor: S. S. Zhukov, I. L. Gonik, V. I. Porkhun

Publikováno v: Russian Journal of General Chemistry. 88:1081-1085

Formation of nuclei polarization via triplet mechanism has been observed and described, allowing reliable identification of ion-radicals stages of the reaction, estimation of the triplets and ion-radical pairs lifetime from the effects of chemical po

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::97bf7346ce9355856b04746eb490a596
https://doi.org/10.1134/s1070363218060051

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Reactivity of the Intermediate Products of the Pulsed Photolysis of Iodophenol

Autor: G. Yu. Vasil’eva, V. E. Avvakumov, V. I. Porkhun, A. V. Arshinov

Publikováno v: Russian Journal of Physical Chemistry A. 93:1417-1419

The direct photolysis of p-iodophenol in benzene and water is studied. The absorption spectra of the complex of atomic iodine with benzene and the p-hydroxyphenyl iodohydroxycyclohexadienyl radical R• are recorded. An absorption spectrum is recorde

Externí odkaz: https://explore.openaire.eu/search/publication?articleId=doi_________::95afad2c81b745113861bb100d6f8f75
https://doi.org/10.1134/s0036024419070239

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