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Information × Registration Number 0226U001835, (0125U000387) , R & D reports Title Design, synthesis and properties of multi-emissive lanthanide-containing compounds and hybrid materials. popup.stage_title Синтез моно- та політопних тетрапірольних сполук, їх регіозомерів та їх комплексів з лантанідами. Дослідження впливу відмінностей структури у відповідних рядах на емісійні властивості сполук. Зіставлення люмінесцентних властивостей іонів Eu2+ та Ce3+ у оксидних сполуках елементів II-III груп у рамках наближення чисто електронних переходів Head Dotsenko Volodymyr P., Доктор хімічних наук Registration Date 01-02-2026 Organization Physico-Chemical Institute O. Bogatsky National Academy of Sciences of Ukraine popup.description1 The purpose of the research is the development of new multi-emissive lanthanide-containing compounds and hybrid materials with optimal combinations of optical properties for the use as components of optoelectronic devices, sensors, luminescent labels for biomedicine. popup.description2 Isomers of nitro- and amino-substituted tetraphenylporphyrins, triphenylcorroles, and polytopic derivatives based on them, modified with aminopolycarboxylic acids, as well as their complexes with neodymium ions, were synthesized, and the spectral-luminescent properties of the obtained compounds were analyzed. The influence of regioisomerism of the synthesized tetrapyrroles (corroles and porphyrins) and their complexes on light absorption, fluorescence, phosphorescence, and sensitized 4f-luminescence of lanthanides was investigated. It was established that the luminescence efficiency of Nd(III) is significantly sensitive to the spatial arrangement of the ion relative to the chromophore. For the first time, a p-f heteronuclear complex based on corrole was obtained, and its structure was studied using a set of physicochemical methods. A method for predicting the spectral positions of luminescence and absorption bands of Eu²⁺ ions in oxide compounds of group II-III elements was proposed. It was found that in oxide compounds the energy gap between the zero-phonon lines of the 4f → 5d₁ transitions of Ce³⁺ and Eu²⁺ ions, ΔE (Ce³⁺; Eu²⁺), lies in the range from 0.72 eV (CaO) to 1.02 eV for Ca₃Sc₂Si₃O₁₂. A relationship between the magnitude of ΔE (Ce³⁺; Eu²⁺) and parameters reflecting crystal field effects and the nature of the Ce³⁺(Eu²⁺)-ligand chemical bond in a given compound was proposed. Product Description popup.authors Rusakova Natalia V. Smola Serhii S. Berezovska Iryna V. Semenishyn Mykola M. Yefriushyna Ninel P. Khomenko Olena V. Dotsenko Volodymyr P. Halushchenko Valeriia S. Pochinok Ilvera V. Oleksandr Y. Korovin Valeriia V. Linnyk popup.nrat_date 2026-02-01 Close