Spectral and energetic transformation of femtosecond light impulses in the Eu3+ complex with dehydroacetic acid

Jerzy Hanuza , Maciej Ptak , Radosław Lisiecki , J. Janczak , A. Kwocz , Edyta Kucharska , S. Roszak , Witold Ryba-Romanowski , Mirosław Mączka , Krzysztof Hermanowicz , Lucyna Macalik

Abstract

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.
Author Jerzy Hanuza (EaE / IChaFT / DBCh) - [inna]
Jerzy Hanuza,,
- Department of Bioorganic Chemistry
- inna
, Maciej Ptak
Maciej Ptak,,
-
, Radosław Lisiecki
Radosław Lisiecki,,
-
, J. Janczak
J. Janczak,,
-
, A. Kwocz
A. Kwocz,,
-
, Edyta Kucharska (EaE / IChaFT / DBCh)
Edyta Kucharska,,
- Department of Bioorganic Chemistry
, S. Roszak
S. Roszak,,
-
, Witold Ryba-Romanowski
Witold Ryba-Romanowski,,
-
, Mirosław Mączka
Mirosław Mączka,,
-
, Krzysztof Hermanowicz
Krzysztof Hermanowicz,,
-
et al.`
Journal seriesJournal of Luminescence, ISSN 0022-2313, e-ISSN 1872-7883, (A 35 pkt)
Issue year2018
Vol198
Pages471-481
Publication size in sheets0.5
Keywords in EnglishEu3+ 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
ASJC Classification3104 Condensed Matter Physics; 1303 Biochemistry; 1600 General Chemistry; 3107 Atomic and Molecular Physics, and Optics; 1304 Biophysics
DOIDOI:10.1016/j.jlumin.2018.02.067
Languageen angielski
Score (nominal)35
ScoreMinisterial score = 35.0, 02-07-2019, ArticleFromJournal
Publication indicators Scopus SNIP (Source Normalised Impact per Paper): 2016 = 1.14; WoS Impact Factor: 2017 = 2.732 (2) - 2017=2.577 (5)
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