Photophysical Characteristics of Solutions of Divalent Europium Dihalides EuX2 (X = Cl, Br). Aluminum Alkyls as Enhancers of Luminescence of the Eu2+ Ion
The photophysical properties of solutions of EuCl2 and EuBr2 dihalides in tetrahydrofuran have been studied in detail for the first time. The absorption, photoluminescence (4f65d1 → 4f7 transition), and photoluminescence excitation spectra as well as photoluminescence yields and lifetimes of excited Eu2+* ions were measured. The effect of increasing the luminescence intensity of the Eu2+ ion in the presence of aluminum alkyls was detected due to the rigid structure of a four-center complex formed by the interaction of EuCl2 and EuBr2 with aluminum alkyls.
Authors
- D. I. Galimov
- Р. Г. Булгаков (ORCID: https://orcid.org/0000-0002-1195-9562)
- S. M. Yakupova
- Kristina S. Vasilyuk (ORCID: https://orcid.org/0000-0001-6032-4881)
Institutions
- Russian Academy of Sciences (RU)
- Ufa Institute of Chemistry (RU)
- Institute of Physics of Molecules and Crystals (RU)
Publication Details
- Journal
- Bulletin of the Russian Academy of Sciences Physics
- Published
- 2025-03-01
- DOI
- https://doi.org/10.1134/s1062873824710249
- Primary Topic
- Lanthanide and Transition Metal Complexes
- Type
- article
- Field-Weighted Citation Impact
- 0.00