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Influence of the Structure of 3-Arylacetylacetonate Ligands on the Luminescence Properties of Eu3+ and Tb3+ Complexes
Journal article   Peer reviewed

Influence of the Structure of 3-Arylacetylacetonate Ligands on the Luminescence Properties of Eu3+ and Tb3+ Complexes

A. V. Kandel, E. A. Mikhalyova, M. Zeller, A. W. Addison and V. V. Pavlishchuk
Theoretical and experimental chemistry, v 53(3)
2017
DOI: https://doi.org/10.1007/s11237-017-9513-y
Featured in Collection :   UN Sustainable Development Goals @ Drexel

Abstract

Article Chemistry Chemistry and Materials Science Chemistry/Food Science General
It was shown that in the series of complexes Tp 2 LnL (Ln = Eu, Tb; Tp – = tris(pyrazolyl)borate anion; L – = 3-arylacetylacetonate) the energy of the triplet state of L – decreases with elongation of the conjugation chain of the aromatic substituent, resulting in change of the nature of emission from metal-centered to ligand-centered. It was found, that the introduction of two antenna ligands of different nature leads to increase of the luminescence quantum yield (to 74%) in the case of the Tb 3+ compounds, probably, due to optimization of energy transfer. In the Eu 3+ compounds it leads to emission quenching, likely, as a result of increased efficiency of energy transfer and non-radiative deactivation of the excited states.

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8 citations in Web of Science
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#7 Affordable and Clean Energy

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Collaboration types
Domestic collaboration
International collaboration
Web of Science research areas
Chemistry, Multidisciplinary
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