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Information × Registration Number 0219U000163, 0118U005309 , R & D reports Title Creation of nanocomposite materials on the basis of coordination polymers as a new generation of catalysts for the synthesis of biologically active carboxylic acids popup.stage_title Head Kolotilov Sergiy Volodymyrovich, Доктор хімічних наук Registration Date 17-01-2019 Organization L.V.Pysarzhevsky Institute of Physical Chemistry of National Academy of Science of Ukraine popup.description2 Conditions for the formation of nanostructured porous coordination polymer (PCP) Cu3 (btc) 2 (traditional name HKUST; btc3- = 1,3,5-benzol-tricarboxylate) with average particle size from 50 to 60 nm in the presence of substances limiting crystal growth are found, and also microscopic particles with an average size of up to 500 microns. It is shown that nanosized and microparticular control Cu3 (btc) 2 catalyzes the process of oxidation of benzoin and substituted benzoyl with hydrogen peroxide to form the corresponding benzoic acids. It has been found that the yield of benzoic acid and the average rate of such a process, depending on the initial concentration of benzoyne, passes through the maximum, which can be explained by blocking the access of the substrate to catalytically active catalyst centers by adsorption of benzoin. The size of the substituted benzoyl molecules does not affect the rate of reaction of their oxidation, which is explained by the reaction of the reaction to the "outer surface" of the nanostructured control panel. Methods of creating composites of nanoparticles Cu3 (btc) 2 on porous carriers - aerosols (silica gel) and perlite. It was shown that PKP particles are not washed away from the composites when they are washed with organic solvents. The passage of reactive mixtures containing benzoin and hydrogen peroxide through the layers of such composites (filled columns) at room temperature allows for the oxidation of benzoin with a high yield to benzoic acid, thereby also forming 2-carboxy-1,4-benochinon. Deeper oxidation of benzoin in the presence of a composite is due to the higher ratio of catalyst / substrate. It was found that oxidation of cyclic alcohol - 1,2,3,4-tetrahydronaphthalene-1-ol - leads to the formation of only ketone (1,2,3,4-tetrahydronaphthalene-1-one). Product Description popup.authors Іваниця М.О. Курмач М.М. Литвиненко А.С Сацька Ю.А. Яремов П.С. popup.nrat_date 2020-04-02 Close