Spectral Intensities of Some Er<SUP>3+</SUP> β-Diketonate Complexes
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概要
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The oscillator strengths of the absorption bands of Er<SUP>3+</SUP> acetylacetonate, thenoyltrifluoroacetate, and dibenzoylmethide in methanol and dimethylformamide were determined and discussed in terms of the Judd-Ofelt’s theory. It was possible to use the Judd-Ofelt parameters for the evaluation of the spectral intensities. The oscillator strength of the hypersensitive transition <SUP>2</SUP>H<SUB>11⁄2</SUB>←<SUP>4</SUP>I<SUB>15⁄2</SUB> of Er<SUP>3+</SUP> complexes, <I>P</I>(<SUP>2</SUP>H<SUB>11⁄2</SUB>), was indicated by the <I>P</I>(<SUP>2</SUP>H<SUB>11⁄2</SUB>)≈τ<SUB>comp</SUB>ν<SUB>comp</SUB> U(2)/2J+1 and it is demonstrated that “hypersensitivity” may be explained only by the τ<SUB>2</SUB> parameter of each complex, originating from the forced electric dipole transition.
著者
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MISUMI Seizo
Inorganic Chemistry Laboratory, Faculty of Science, Kushu University
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Isobe Toshiyuki
Inorganic Chemistry Laboratory, Faculty of Science, Kyushu University
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