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Information × Registration Number 0223U001152, 0122U001811 , R & D reports Title Design of multifunctional metal complexes based on new polychelating ligands with magneto-luminescent properties for modern technologies popup.stage_title Head Amirkhanov Volodymyr M., Доктор хімічних наук Registration Date 25-01-2023 Organization Taras Shevchenko National University of Kyiv popup.description2 New polydentate polychelating ligand systems of the carbonylamidophosphate and sulfonylamidophosphate types have been synthesized. Their structure and physicochemical properties and the structure and properties of coordination compounds of 3d and 4f metals based on them were studied. The types of coordination polyhedra of central metal atoms, methods of coordination of ligands and types of supramolecular bonds have been established. New polydentate N donor ligands for obtaining charged or neutral complexes with 3d metals were also synthesized. The iron(II) complex, which is capable of exhibiting a spin transition with significant hysteresis in the room temperature region as a result of breaking the symmetry of the crystal lattice, was investigated. A theoretical model based on the symmetrical principles of the Landau theory was used to describe the observed processes. An approach for obtaining neutral complexes with ionogenic ligands based on five-membered heterocycles is proposed. Research methods: luminescence spectroscopy, elemental analysis, IR spectroscopy, calorimetry, magnetochemical measurements, X-ray structural analysis, X-ray diffractometry, 57Fe Mössbauer spectroscopy.  Product Description popup.authors Holenya Іryna О. Znoviak Kateryna O. Kariaka Nataliia S. Ovchynnikov Volodymyr A. Seredyuk Maksym L. Trush Viktor O. popup.nrat_date 2023-01-25 Close