| Budget Amount *help |
¥5,590,000 (Direct Cost: ¥4,300,000、Indirect Cost: ¥1,290,000)
Fiscal Year 2014: ¥1,170,000 (Direct Cost: ¥900,000、Indirect Cost: ¥270,000)
Fiscal Year 2013: ¥1,690,000 (Direct Cost: ¥1,300,000、Indirect Cost: ¥390,000)
Fiscal Year 2012: ¥2,730,000 (Direct Cost: ¥2,100,000、Indirect Cost: ¥630,000)
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| Outline of Final Research Achievements |
A series of disilane-bridged donor-acceptor molecules containing strong electron donating and withdrawing substituents was designed and synthesized in acceptable yields. The substituents substantially affected the fluorescence and non-linear optical properties of the compounds. In the solid state, the compounds showed blue-purple fluorescence with high quantum yields. Compound which had p-N,N-dimethylamino and o-cyano substituents exhibited optical second harmonic generation (activity: ca. 3.0 times that of urea) in the powder state. Density functional theory calculations for the ground and excited states indicated that both the locally excited state and the intramolecular charge transfer excited state made important contributions to the luminescent behavior.
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