| People | Locations | Statistics |
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| Naji, M. |
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| Motta, Antonella |
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| Aletan, Dirar |
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| Mohamed, Tarek |
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| Ertürk, Emre |
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| Taccardi, Nicola |
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| Kononenko, Denys |
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| Petrov, R. H. | Madrid |
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| Alshaaer, Mazen | Brussels |
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| Bih, L. |
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| Casati, R. |
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| Muller, Hermance |
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| Kočí, Jan | Prague |
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| Šuljagić, Marija |
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| Kalteremidou, Kalliopi-Artemi | Brussels |
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| Azam, Siraj |
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| Ospanova, Alyiya |
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| Blanpain, Bart |
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| Ali, M. A. |
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| Popa, V. |
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| Rančić, M. |
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| Ollier, Nadège |
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| Azevedo, Nuno Monteiro |
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| Landes, Michael |
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| Rignanese, Gian-Marco |
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Hnatejko, Zbigniew
in Cooperation with on an Cooperation-Score of 37%
Topics
Publications (10/10 displayed)
- 2023LuminescentHybrid BPA.DA-NVP@Eu2L3Materials: In Situ Synthesis, Spectroscopic, Thermal, andMechanical Characterization
- 2019Complexation behavior of 6,6″-dimethyl-2,2′:6′,2″-terpyridine ligand with Co(II), Au(III), Ag(I), Zn(II) and Cd(II) ions: Synthesis, spectroscopic characterization and unusual structural motifscitations
- 2018Carboxyl groups of citric acid in the process of complex formation with bivalent and trivalent metal ions in biological systemscitations
- 2017The spectroscopic studies of new polymeric complexes of silver(I) and original mononuclear complexes of lanthanides(III) with benzimidazole-based hydrazonecitations
- 2015Two types of lanthanide Schiff base complexes: Synthesis, structure and spectroscopic studiescitations
- 2015Different supramolecular architectures in self-assembled praseodymium(III) and europium(III) complexes with rare coordination pattern of salicylaldimine ligandcitations
- 2013New complexes of cobalt(II) ions with pyridinecarboxylic acid N-oxides and 4,4′-bypcitations
- 2012Synthesis, complexation studies and structural characterization of d and f metal ion complexes with 4-chloroquinaldinic acid N-oxidecitations
- 2011Synthesis, spectroscopic and structural properties of uranyl complexes based on bipyridine N-oxide ligandscitations
- 2002Luminescence studies of Eu(III) mixed ligand complexescitations
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article
Luminescence studies of Eu(III) mixed ligand complexes
Abstract
<p>A series of europium(III) mixed ligand complexes, Ln/L/X based on pyridine carboxylic acid N-oxides, L, plus 2,2′-bipyridine (bipy) or 1,10-phenanthroline (phen), X, have been studied. The complexes were characterized using Eu luminescence (conventional and laser-induced) spectroscopy. A number of N-oxide ligand designs, including mono- and dicarboxylic acids and their derivatives (aryl-substituted), having various steric groups, have been tested with the main goal of optimizing the luminescence properties under various experimental conditions. Potentiometric titration of acid N-oxides have been carried out in aqueous solution in order to determine their pK<sub>a</sub> and the pH values, important for complexation conditions. Based on the Eu(III) luminescence lifetime measurements, hydration numbers of the Eu(III) complexes have been obtained, which evidenced the formation of binary EuL and EuL<sub>2</sub> complexes and mixed ligand EuL<sub>2</sub>X complexes. The results suggest that in ternary complex formation the steric requirement of the secondary ligand play an important role. The results of these studies lead us to achieve a better understanding of the factors, as aryl substituted groups (e.g. Br, NO<sub>2</sub>, NH<sub>2</sub>, CH<sub>3</sub>, OCH<sub>3</sub>) and a kind of solvent, influencing the luminescence intensity and lifetime of the Eu(III) complexes studied. © 2002 Elsevier Science B.V. All rights reserved.</p>