The electronic spectra of anthraquinone in shpol'skii matrices and in crystals at 4.2K.
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概要
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The lower excited singlet and triplet states of 9,10-anthraquinone-<I>d</I><SUB>0</SUB> and -<I>d</I><SUB>8</SUB> are examined in normal alkanes and in crystals at 4.2 K with the phosphorescence excitation method. The S←S<SUB>0</SUB> and T←S<SUB>0</SUB> excitation spectra are analyzed by considering environmental effects on and isotopic changes in the vibrational structure. The low energy region of the spectra can be explained without taking the A<SUB>u</SUB> origin in close proximity of the B<SUB>1g</SUB> origin into account. The latter origin band in the singlet and triplet spectra in hexane and in crystals, respectively, is weaker by a factor of 10<SUP>−3</SUP>–10<SUP>−2</SUP> than the strongest vibronic band in the respective regions. No clear evidence has been found about the location of the singlet and triplet A<SUB>u</SUB> states in the excitation spectra.
- 公益社団法人 日本化学会の論文
著者
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Nishi Nobuyuki
The Institute For Solid State Physics The University Of Tokyo
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KINOSHITA Minoru
The Institute for Solid State Physics, The University of Tokyo
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Kinoshita Minoru
The Institute For Solid State Physics The University Of Tokyo
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Kanezaki Eiji
The Institute for Solid State Physics, The University of Tokyo
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