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Information × Registration Number 0225U000728, (0124U000138) , R & D reports Title Creation of systems for the generation of active O-centered nucleophiles and O-centered radicals for processes of oxidation of organic substrates and neutralization of ecotoxicants that meet the requirements of "green" chemistry popup.stage_title Синтез димерних поверхнево-активних речовин, які містять оксимні групи, як основа для створення нових ефективних амфіфілів для використання у нуклефільно/окислювальних системах за участі пероксиду водню. Дослідження дії оксидантів та біокаталізаторів у процесах утворення N-оксилімідних радикалів, активних в ініціюванні та каталізі радикальних процесів Head Opeyda Yosyp О., д.х.н. Registration Date 17-01-2025 Organization Institute of Physical and Organic Chemistry and Coal Chemistry. LM Litvinenko of the National Academy of Sciences of Ukraine popup.description1 The objective of this work is to develop a conceptual framework for creating new binary catalytic compositions by combining organocatalysts, biocatalysts, and hetero-catalysts based on variable valency metals and their oxides. The goal is to facilitate the generation of active O-centered radicals. Additionally, the work focuses on the creation of catalytic systems for environmentally safe oxidation processes using 'green' oxidizers, specifically O2 and HOOH. popup.description2  The object of research is organo-, bio- and heterocatalysts based on transition metals, dimeric surfactants. The aim is to create effective systems generating O-centered radicals for oxidation of organic substrates and O-centered nucleophiles functionalized surfactants for the effective destruction of ecotoxicants. Research methods - NMR, IR and UV spectroscopy, gas volumetry, gas-liquid and mass chromatography, pH-metry, thermogravimetry. The reactivities of phthalimide-N-oxyl (PINO) and benzotriazole-N-oxyl (BTNO) radicals were investigated. It has been shown that PINO's reactivity and selectivity are significantly higher than those of BTNO. This is explained by the contribution of charge transfer in the transition state of the reaction. The kinetics of oxidation of cumene by molecular oxygen at the benzylic C-H bond at temperatures below 70С, when the formed hydroperoxide does not participate in the initiation of the chain process, have been studied. The kinetics of oxidation of cumene and benzyl alcohol in the presence of bis-salicyladiminate complexes of Сu(II) – bis-SA Cu(II), with contain trifluoromethyl or tetrafluoroethoxy substituent in the ligand environment, have been studied. A number of dimeric surfactants (the main group of which includes an imidazole and pyridine nucleus, functionalized with a covalently bound oxime group, as well as their methyl analogues) were obtained. It was shown that for dimeric surfactants, the difference in the reactivity in transfer the acyl group is related to the cationic center nature and is of a general nature. Product Description popup.authors Volkova Larysa K. Hvozdetska Viktoriia O. Mironov Oleh L. Popov Anatolii F. Redko Andrii M. Taran Nadiia A. Tkachuk Yuliia V. Shumeiko Oleksandr Ye. popup.nrat_date 2025-01-17 Close