Mechanochemical synthesis of thenoyltrifluoroacetone-1,10-phenanthroline europium complex

• Authors: Joana Zaharieva , Maria Milanova , Dimitar Todorovsky
• Languages of publication: EN

Abstracts

EN

The paper considers the possibilities for mechanochemical synthesis of rare earth complexes. The complex Eu(TTA)3·phen (HTTA - 2-thenoyltrifluoroacetone, phen - 1,10-phenanthroline) is synthesized by mechanical treatment of a mixture of EuCl3.6H2O, HTTA, phen and NaOH in planetary ball mill Pulverisette 7 for 30 min at 800 min−1. The non reacted starting reagents and reaction side products are separated by treating activated mixture with water-ethanol solution following a procedure proposed in the literature. The elemental composition, X-ray diffraction pattern, IR spectra, optical properties (excitation and emission spectra, luminescence lifetime) and morphology of the mechanochemically synthesized complex are compared with those of the complex prepared from solution by the conventional method. The results confirm close similarity in the molecular structure and identity of the elemental composition, X-ray diffractograms and fluorescence properties of the compounds prepared by both methods. [...]

Keywords

EN

Rare earth compounds; Mechanochemical processing; Optical properties; SEM; X-ray diffraction

• Publisher: De Gruyter Open
• Journal: Open Chemistry
• Year: 2012
• Volume: 10
• Issue: 6
• Pages: 1907-1912

Dates

published

1 - 12 - 2012

online

21 - 9 - 2012

Contributors

author

Joana Zaharieva

• Faculty of Chemistry, University of Sofia, Sofia, 1164, Bulgaria

author

Maria Milanova

• Faculty of Chemistry, University of Sofia, Sofia, 1164, Bulgaria

author

Dimitar Todorovsky

• Faculty of Chemistry, University of Sofia, Sofia, 1164, Bulgaria

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Identifiers

DOI

10.2478/s11532-012-0115-1