Search academic texts

Information × Registration Number 0214U005678, 0109U001090 , R & D reports Title The influence of composition and structure of 3d metal complexes with N-, O- and S-containing hetero- and macrocyclic polydentate ligands on peroxo-bonds (O-O) formation and decomposition in catalytic liquid-phase oxidation of organic substrates popup.stage_title Head Kamalov Gerbert Leonovich, Registration Date 11-02-2014 Organization A.V.Bogatsky Physico-Chemical Institute of the National Academy of Sciences of Ukraine popup.description2 Research objects: mono- and polynuclear carboxylates of 3d metals, dibenzyl ether, cyclohexene, hydrogen peroxide, aerosils and crown-compounds. Aim of researches: establishment of conformities to law of formation and decomposition of products and intermediates of organic substrates at liquid-phase oxidation by air and hydrogen peroxide, catalyzed mono-, bi- and polynuclear complexes of 3d transitional metals. Research methods: kinetics, sorption, oscillation, electronic and NMR spectroscopy, mass-spectrometry, thin-layer and gas-liquid chromatography, potentiometry. Relationship between composition and structure more than 80 mono- and heteronuclear carboxylate complexes of 3d transitional metals of different structure which contain pivalate, 4,5-dimethylpyrazole, 4,5-di(trifluoromethyl)pyrazole, dipyridine, triflate and phenanthroline ligands, with their catalytic properties in decomposition of hydrogen peroxide, dibenzyl ether and cyclohexene oxidation by air and hydrogen peroxide is studied. The synthesis methods are worked out, a structure and properties of new polydent ligands - crown-ethers are studied. The crown-ethers complexes (CE) with potassium diperoxochlorochromate and chlorochromate, benzo- and 4'-bromobenzo-18-crown-6 complexes with HAuBr4 that isostructural to the analogous complexes of HAuCl4 are obtained. Kinetics of nCE·KCrO5Cl decomposition to the corresponding complexes of nCE·KCrO3Cl (n=1,2) is investigated. Orders and rates of initial complex decomposition are determined. The synthesis methods of: pyrimidines which contain -ketoimine fragment, ligands on the basis of 5-nitrosopyrimidines and imidazol-4,5-dicarboxylic acid, isomeric N-oxides of 2-phenyl-1,2,3-triazoles, polyfunctioning N- containing ligands and biheteroaryl compounds on the basis of hydrazones and 2- -oxoalkylpyrimidines are developed and improved. On these methods more than 60 compounds samples are obtained. Product Description popup.authors Іванов Ю.Е Волошина Н.С. Грищук Л.В. Камалов Г.Л. Коваль А.В. Коцеруба В.А. Кушнир К.П.. Левченко О.О Плужник-Гладырь С.М. Степанов Д.Є. Чіхічін Д.Г. Яволовський А.О. popup.nrat_date 2020-04-02 Close