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Kolekcje
Inne
Spectral and energetic transformation of femtosecond light impulses in the Eu3+ complex with dehydroacetic acid.
Autorzy
Rok wydania
2018
Czasopismo
Numer woluminu
198
Strony
471-481
DOI
10.1016/j.jlumin.2018.02.067
Kolekcja
Język
Angielski
Typ publikacji
Artykuł
A solid state Eu3+ complex with dehydroacetic acid (DHA) has been synthesized and characterized by elemental analysis, UV–visible, FT-IR, FT-Raman, powder and single-crystal X-ray diffraction and optical spectroscopy studies. The complex has formula [Eu(DHA)2(H2O)5]NO3 with DHA = C8H7O4−, where the europium ions is in monocapped distorted square antiprism environment with coordination number nine. Its photophysical properties have been analyzed in terms of its molecular structure and DFT calculations performed for the representative crystal fragment including Eu3+ and two DHA ligands. The luminescence and dynamics of the excited states depopulation have been studied using femtosecond laser excitation. The energy transfer mechanism between the ligand and Eu3+ electronic energy levels has been proposed. The obtained results have been compared to those of Gd3+ dehydroacetic derivative.
Słowa kluczowe
Eu3+ complex, Gd3+ derivative, Dehydroacetic acid, synthesis, FT-IR and FT-Raman, density functional theory, Time dependent density functional theory, Electronic absorption and emission spectra, Femtosecond laser excitation
Adres publiczny
http://dx.doi.org/10.1016/j.jlumin.2018.02.067
Strona internetowa wydawcy
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