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This article is cited in 5 scientific papers (total in 5 papers)
Spectroscopy of condensed matter
Luminescent properties of mixed-ligand neodymium $\beta$-diketonates obtained in supercritical carbon dioxide in polymer matrices of various nature
V. S. Kaplina, A. S. Kopylova, T. S. Zarhinaa, P. S. Timashevabc, A. B. Solovievaa a N.N. Semenov Federal Research Center for Chemical Physics Russian Academy of Sciences, Moscow
b Institute of Photonic Technologies, Federal Research Centre ‘Crystallography and Photonics’, Russian Academy of Sciences, Moscow, Troitsk, Russia
c Institute for Regenerative Medicine, I.M. Sechenov First Moscow State Medical University (Sechenov University)
Abstract:
Diverse-ligand phosphor complexes of neodymium acetylacetonate with phenanthroline have been synthesized in polymer matrices (oligourethanmethacrylate, fluoroplast, and polycarbonate) in the medium of supercritical carbon dioxide, while the role of one of the ligands in such complexes is performed by the polymer matrix fragments. The luminescence spectra of the obtained triple systems have been described and it has been shown that the position of the luminescence maxima is bathochromically shifted relative to the Nd(Acac)$_3$/polymer double systems obtained in a similar way and the shift magnitude depends on the polymer matrix nature. It has been shown that when these components are introduced into polymers from a solution, such phosphor diverse-ligand neodymium complexes are not formed. The formation of new Nd(Acac)$_3$/1,10-phenanthroline/polymer structures at the impregnation of oligourethane methacrylate by neodymium $\beta$-diketonate and phenanthroline in the supercritical CO$_2$, which are not formed by the introduction of these components from solution, has been confirmed by differential thermal analysis.
Keywords:
luminescence, neodymium acetylacetonate, phenanthroline, diverse-ligand $\beta$-diketonates, supercritical carbon dioxide.
Received: 20.12.2019 Revised: 02.02.2020 Accepted: 28.02.2020
Citation:
V. S. Kaplin, A. S. Kopylov, T. S. Zarhina, P. S. Timashev, A. B. Solovieva, “Luminescent properties of mixed-ligand neodymium $\beta$-diketonates obtained in supercritical carbon dioxide in polymer matrices of various nature”, Optics and Spectroscopy, 128:7 (2020), 869–876; Optics and Spectroscopy, 128:7 (2020), 869–876
Linking options:
https://www.mathnet.ru/eng/os360 https://www.mathnet.ru/eng/os/v128/i7/p869
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