Abstract
Theoretical models for ligand–rare-earth-ion energy-transfer processes and numerical solutions of the rate equations are used to analyse the dependence of the 4f–4f emission intensity and the 5 D 0 excited state lifetime with an applied external pressure, in Eu 3+ complexes. Pathways for the intramolecular energy-transfer process between the ligands and the rare-earth ion are proposed. The theoretical results agree well with the experimental data for the Eu(TTF) 32H 2O compound in a polymeric solution and crystalline form.
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