INVESTIGATION OF NEW POLYMER COMPLEXES BASED ON Yb(III) β-DIKETONATES

• Datum: 2022
• Автори та афіліації: Nadiia Ivakha — V.I.Vernadsky Institute of General and Inorganic Chemistry of NAS of Ukraine, Akad. Palladin Avenue, 32/34, Kyiv, Ukraine, 03142; Oleksandra Berezhnytska — V.I.Vernadsky Institute of General and Inorganic Chemistry of NAS of Ukraine, Akad. Palladin Avenue, 32/34, Kyiv, Ukraine, 03142; Oleksandr Rohovtsov — V.I.Vernadsky Institute of General and Inorganic Chemistry of NAS of Ukraine, Akad. Palladin Avenue, 32/34, Kyiv, Ukraine, 03142; Olena Trunova — V.I.Vernadsky Institute of General and Inorganic Chemistry of NAS of Ukraine, Akad. Palladin Avenue, 32/34, Kyiv, Ukraine, 03142; Serhii Smola — A.V. Bogatsky Physico-chemical Institute National Academy of Sciences of Ukraine
• Ключові слова: keywords
• Hauptverfasser: Ivakha , Nadiia, Berezhnytska, Oleksandra, Rohovtsov , Oleksandr, Trunova, Olena, Smola, Serhii
• Format: Artikel
• Sprache: Englisch
• Veröffentlicht: V.I.Vernadsky Institute of General and Inorganic Chemistry 2022
• Online Zugang: https://ucj.org.ua/index.php/journal/article/view/447
• Назва журналу: Ukrainian Chemistry Journal

The metal polymers based on mono- and heteroligand β-diketonate complexes of Yb(III) with 2,7-dimethyl-octen-1-dione-3,5, 2,6-dimethyl-heptene-1-dione-3, 5 and with phenanthroline was synthesized. It has been defined that the coordination environment of the central ion remains unchanged during radical polymerization. The shape and position of the bands in the electronic absorption spectra are similar to the corresponding monomeric β-diketonate metal complexes, and slight shifts indicate deformation of the elementary unit of the metal polymer during the formation of the polymer chain. It is shown that the polymerization process lead to an increasing in the thermal stability of polymer complexes in comparison with monomeric analogues. An increase in the emission of metal polymers in comparison with monomeric complexes was established by the method of luminescent spectroscopy, which is due to energy, steric, and structural-mechanical factors.