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Information × Registration Number 0223U001530, 0122U001819 , R & D reports Title Organically modified and functionalized polyoxometals, oxides and pyrazolates of metals for the processes of catalysis and energy conversion popup.stage_title Head Domasevych Kostiantyn V., Доктор хімічних наук Registration Date 30-01-2023 Organization Taras Shevchenko National University of Kyiv popup.description2 Objects of the study: Synthetic methods toward derivatives of pyrazole, 1,2,4-triazole, carboxylates and polynitrosubstituted heterocyclic compounds, hydrothermal reactions of the hydrid organic-inorganic compounds synthesis, thermal stability of coordination compounds. Aim of the work: To develop and work out methods of synthesis, to obtain and identify organic compounds, to determine the conditions of hydrothermal synthesis and to obtain new hybrid organic-inorganic materials. Methods of the study: Chemical and physico-chemical methods (microanalysis, IR, NMR-spectroscopy, differential thermal analysis, X-ray powder and crystal structure analysis). Synthetic methods for bifunctional derivatives of pyrazole, 1,2,4-triazole and carboxylates as new promising ligands for coordination compounds were developed and tested. Syntheses of polynitro pyrazole derivatives are optimized with regard to the stoichiometry of reagents, the temperature regime and the duration of the processes. It is shown that dipolar cycloaddition reactions of diazomethane (ethane) are suited for obtaining various bipyrazoles incorporating molecular carbocyclic spacers of different lengths. The peculiarities of the course of hydrothermal reactions for the synthesis of hybrid organic-inorganic compounds, including interactions in complex multicomponent metal oxide systems (CoII, MoVI) with the formation of heterometallic oxide compositions, have been revealed. The concentration fields for crystallization of coordination compounds as well as the impact of reaction conditions on the composition of the products and their phase purity were determined by the methods of physical and chemical analysis. We have elaborated and tested synthetic procedures, including methods for growth of single crystals, for preparation of the samples of new metal oxide, polyoxometalate, pyrazolate and carboxylate coordination polymers. Product Description popup.authors Lysenko Andrij B. Ponomarova Vira V. Senchyk Ganna A. popup.nrat_date 2023-01-30 Close