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Thiocyanate quenching of Eu(hfa)3 luminescence

1976; Elsevier BV; Volume: 41; Issue: 2 Linguagem: Inglês

10.1016/0009-2614(76)80822-6

1873-4448

Allen J. Twarowski, David S. Kliger,

Magnetism in coordination complexes

Thiocyanate quenching of europium (III) hexaflouroacetylacetonate (Eu(hfa)3) has been studied. Quantum yield and kinetic measurements give evidence that a charge transfer mechanism previously proposed for the quenching process is not the major quenching process. While some quenching takes place at the hfa ligand the majority of quenching takes place at the europium (III) 5D1 and 5D0 states.