With the aim of a simplification of the incorporation of layers in an electroluminescent cell, the emission layer (rare earth elements complex), hole conduction layer (such as N-vinylcarbazole), and electron conduction layer (1,10-phenanthroline) can be superposed in one macromolecule.Сopolymers 2-methyl-5-phenylpentene-1-dione-3,5 with N-vinylcarbazole in a ratio of 5:95, which contain Pr, Nd, Er, and Eu with 1,10-phenanthroline, were synthesized for the first time. The luminescence spectra of the obtained metallocomplexes and copolymers in solutions, films, and solid state are investigated and analyzed. These polymetallocomplexes can be used as promising materials for organic light-emitting devices.
Novel Yb(III) complex with unsaturated β-diketone methacrylacetophenone and its adduct with 1,10-phenanthroline were synthesized and characterized by a number of physicochemical methods (chemical and thermal analysis, infrared, electronic and luminescent spectroscopy). The results obtained indicate the possibility of using these compounds as precursors of NIR-emitting (near infrared) materials.
A monomer-2-methyl-5-phenylpentene-1dione-3,5, its solvent metal complex Eu(III)-water, hybrid metal complex Eu(III)-phenanthroline, new metallopolymers based on them are obtained. The results of above studies have shown that the configuration of the chelate unit is unchanged during polymerization. Using the electron microscopy the homogeneity of metal distribution in the polymer matrix of synthesized metallopolymer was confirmed. The similarity of monomers electronic absorption spectra with polymers spectra confirms the identical coordinative environment of lanthanide ions in both cases. The solubilization of europium β-diketonate complexes with phenanthroline was shown to change luminescence intensity in such complexes.
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