Open AccessTHE COORDINATION COMPOUNDS Gd (III) AND Dy(III) WITH SOME β-DIKETONES
Author(s) -
Оeksandra Berezhnytska,
Oleksandr Rohovtsov,
Artur Horbenko,
Yaroslav Fedorov,
Оlena Trunova,
Olena Chyhyrynets,
S. S. Smola
Publication year - 2021
Publication title -
ukraïnsʹkij hìmìčnij žurnal
Language(s) - English
Resource type - Journals
eISSN - 2708-129X
pISSN - 2708-1281
DOI - 10.33609/2708-129x.87.06.2021.97-120
Subject(s) - dysprosium , polymerization , luminescence , polymer , monomer , ligand (biochemistry) , metal , chemistry , molecule , transition metal , photochemistry , materials science , inorganic chemistry , polymer chemistry , crystallography , organic chemistry , catalysis , biochemistry , receptor , optoelectronics
New complexes of Dy (III) and Gd (III) with b-diketones containing unsaturated and aryl substituents were synthesized. Metal polymers based on synthesized complexes were obtained by the method of radical polymerization. The composition and structure of synthesized complexes and metal polymers are established. It is shown that during polymerization the coordination environment of the central ion remains unchanged. The spectral-luminescent characteristics of the synthesized compounds were studied. The presence of water molecules in the immediate coordination environment causes a low intensity of emission of monomeric dysprosium complexes. In the luminescence spectra of metal polymers, there are bands magnetic dipole transition (4F9 → 6H15/2) and electric dipole transition (4F9 → 6H13/2). The close energies of the triplet level of the ligand and the resonant level of the dysprosium ion cause low emission characteristics of the synthesized dysprosium complexes.