The β-carbonylphopshine oxide group is a well-known chelator for lanthanide and actinide ions. We have been investigating the ability of this group to sensitize the luminescence of lanthanide nitrate salts, specifically Eu3+, Tb3+, Dy3+ and Sm3+. The lanthanide-ligand complexes have been characterized in solution (NMR, luminescence lifetimes, quantum yields, triplet state energies) and in the solid-state (IR). We have also calculated the singlet and triplet state energies of the Gd(NO3)3-ligand complexes using DFT methods.

Four β-carbonylphosphine oxide compounds as sensitizers for lanthanide luminescence

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