Evaluation of the intramolecular energy transfer rate constants in crystalline Eu(hfaa)4ButNH3

Abstract

The relative fluorescence output and Eu3+ level lifetime, T , of crystalline Eu(hfaa)4ButNH3(hfaa = hexafluoroacetylacetonate anion) have been measured over the temperature range 90-300 K.

Photophysical Properties of Some Binary and Ternary Complexes of Rare Earth Ions with Aminobenzoic Acids and 1,10-Phenanthroline

“…Thus, ligands with larger energy differences cannot sensitize rare earth ions effectively. On the other hand, there exists an inverse energy transfer process which affects luminescence intensity [10]:…”

Synthesis, Characterization, and Photophysical Properties of Rare Earth Complexes of N-Phenyl-2-aminobenzoic Acid and 1,10-Phenanthroline

“…Thus, ligands with a larger energy difference cannot sensitize rare earth ions effectively. On the other hand, there exists an inverse energy transfer process which affects luminescence intensity by temperature [10,13] (k(T ): rate constant of inverse energy transfer process (thermal deactivation process), A: preexponential factor):…”

Synthesis, photoluminescent features and intramolecular energy transfer mechanism of europium (III) complexes with fluorinate β-diketone ligand and auxiliary ligands

“…The second is the thermal de-excitation mechanism dealing with the inverse transfer of energy from metal to ligand which is represented thermal de-excitation constant K(T) [37] as shown below…”