Search academic texts

Information × Registration Number 0215U006248, 0112U002485 , R & D reports Title Structural and chemical factors of design, synthesis and functioning of new supramolecular and nanostructured systems with given complexing, optical and catalytic properties popup.stage_title Head Kamalov G.L., Registration Date 24-03-2015 Organization A.V.Bogatsky Physico-Chemical Institute of the National Academy of Sciences of Ukraine popup.description2 The stability constants and the composition of the complexes formed by reacting the bis-crown ethers and salts of amines and diamines in methanol are defined. The techniques of covalent immobilization of lanthanides (Nd, Er, Yb) porphyrinates are developed. The immobilization of complexes increases the efficiency of molecular fluorescence and phosphorescence of porphyrin fragments and efficiency of 4f-luminescence in inorganic (SiO2) and polymeric mediums as compared with the solution complexes in 2-5 times. The optical properties of the solidified solution-melt EuIn2S4 and EuIn2Se4 in NaCl - KCl equimolar composition are investigated. Interaction between PbF2 and EuS in the molten salt NaCl-KCl is investigated by fluorescent spectroscopy and X-ray phase analysis. Mutual quenching of Eu2+ blue luminescence and PbF2 yellow luminescence in the solidified solutions-melts based on NaCl-KCl and the formation of abnormal phases "NaCl" and "KCl" with modified lattice parameters are found. The reaction products of EuF2 and CeF3 with molten NaNO3-KNO3 at 350°С in a helium medium are studied. The oxidation of cerium (III) and europium (II) fluorides to CeO2 and europium (III) oxofluoride, respectively, are investigated. The mixed cation phosphate NaSrGd(PO4)2 and solid solutions based on it are synthesized in the first time. Ba3Tb(PO4)3 and solid solutions based on it are synthesized by the "wet chemical methods". The influence of structure and composition of benzo, dibenzo - and "aliphatic" crown ethers (40 compounds) on the characteristics of their interaction with the surface groups of aerosil A-300, as well as the major factors and fragments of structures that facilitate or hinder the formation of the corresponding surface compounds are examined. Product Description popup.authors Антонович В.П. Доценко В.П. Зінченко В.Ф. Камалов Г.Л. Кириченко Т.И. Кузьмін В.Є. Мешкова С.Б. Плужник-Гладир С.М Русакова Н.В. popup.nrat_date 2020-04-02 Close