Photochemical properties of mixed-ligand complexes europium carboxylates |
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| Authors: | I V Kalinovskaya A N Zadorozhnaya V G Kuryavyi E V Karasev |
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| Institution: | (1) Institute of Chemistry, Far East Division, Russian Academy of Sciences, pr. Stoletiya Vladivostoka 159, Vladivostok, 690022, Russia |
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| Abstract: | The photochemical behavior of mixed-ligand complexes of europium carboxylates with nitrogen-and phosphorus-containing neutral ligands of island and dimer types, Eu(L)3 · xD · nH2O and Eu(L)3 · xD]2 · nH2O (L is the trifluoroacetate, toluate, or cinnamate anion), was studied. During UV irradiation of the complexes of europium carboxylates with 1,10-phenanthroline and 2,2′-dipyridyl, a luminescence buildup was observed. EPR measurements demonstrated that the observed buildup of luminescence from europium occurs in parallel with the increase of the concentration of radical anions formed from neutral ligands. |
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