- Novel organosilicon monomer for preparing transparent matrices doped with lanthanide complexes
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Perfluoroadipic bis(trialkoxysilylpropyl)amide was synthesized as a mixture of five com- pounds with the general formula (EtO)n(MeO) 3-n Si(CH2)3NHC(O)(CF2) 4C(O)NH(CH2)3 Si(OMe)n(OEt) 3-n (1, n = 1, 2). Hydrolysis of this product by a specified amount of water (1 : 4) gave oligomers EtO[(HO)(EtO)Si(CH2) 3NH(O)C(CF2)4C(O)NH(CH2) 3Si(OEt)2O]nH (n = 7-9). From oligomer solutions, transparent glassy thermally stable films were obtained. The film material was studied by IR spectroscopy, atomic force microscopy, transmission electron mi- croscopy, and powder X-ray diffraction. Compound 1 and oligomers can efficiently solvate lanthanide diketonate complexes. They displace water from the metal coordination sphere, and this water is then spent for hydrolysis of trialkoxysilyl groups. The luminescence intensity of matrix films based on the oligomers depends on the concentration of lanthanide complexes and is very low at λexc = 330 nm, whereas the luminescence intensity of the Eu3+ cation is very high.
- Ladilina, E. Yu.,Lyubova,Semenov,Kuznetsova,Kirillov,Faerman,Dolgonosova,Baten'kin,Lopatin
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- PROCESS FOR PRODUCING FLUORINATED COMPOUND
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To provide a process for producing a desired perfluorinated product at a high yield in a fluorination reaction of a partially fluorinated ester. A perfluorinated compound (4) is obtained by fluorinating in a liquid phase a compound (3) (wherein the fluorine content is at least 30 mass %) obtained by reacting a compound (1) and a compound (2), wherein the compound (1) is HOCH2—RA—CH2OH, the compound (2) is X1C(═O)—C(RB)(RC)(RD), RA is a bivalent saturated hydrocarbon group or the like which has no hetero atom such as an etheric oxygen atom, X1 is a halogen atom, and —C(RB)(RC)(RD) is a branched group.
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Paragraph 0250
(2016/06/28)
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- Method for producing fluorinated compound
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Provided is a method for producing a desired perfluorinated product with high yield by a fluorination reaction of a partially fluorinated ester. A compound (3), which is produced by reacting a compound (1) with a compound (2) (and which has a fluorine content of 30 mass% or more), is fluorinated in a liquid phase to produce a perfluorinated compound (4), wherein the compound (1) is represented by the formula HOCH2-RA-CH2OH and the compound (2) is represented by the formula X1C(=O)-C(RB)(RC)(RD). RA represents a bivalent saturated hydrocarbon group or the like and does not have a hetero atom such as an ethereal oxygen atom. X1 represents a halogen atom, and -C(RB)(RC)(RD) represents a branched group.
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Paragraph 0428; 0431; 0432
(2016/12/22)
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- PROCESSES FOR PRODUCTION OF FLUORINE-CONTAINING COMPOUNDS
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This process for producing fluorine-containing compounds includes liquid-phase fluorination by introducing a raw material compound and fluorine gas into a solvent to replace hydrogen atoms in the raw material compound with fluorine atoms. More specifically, the process for producing fluorine-containing compounds includes (1) promoting fluorination by dissolving the raw material compound in anhydrous hydrofluoric acid and introducing into a liquid-phase fluorination solvent, or (2) promoting fluorination by dissolving the raw material compound in a perfluoro compound having a plurality of polar groups in a molecule thereof and introducing into a liquid-phase fluorination solvent. According to these processes, a fluorination reaction can be carried out at high yield and without containing hardly any isomers while using a hydrocarbon compound as is for the raw material.
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Page/Page column 12
(2010/09/05)
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