Abstract
We report the experimental determination and a theoretical calculation of the 4f–4f emission quantum yield in the Eu(thenoyltrifluoroacetonate) 3.2(dibenzyl sulfoxide) compound. The experimental procedure for determining the quantum yields is based on a method previously proposed by Bril and coworkers. The theoretical calculations are carried out by solving an appropriate set of rate equations and by using spectroscopic parameters and energy transfer rates recently reported for this compound. For the sake of comparison, the hydrated compound (two water molecules in the place of the dibenzyl sulfoxide) is also studied. Good agreement between theory and experiment is obtained, provided that the lifetime of the lowest triplet level of the donor ligand is ≥10 −5 s at room temperature.
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