Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2020: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2019: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
Fiscal Year 2018: ¥1,560,000 (Direct Cost: ¥1,200,000、Indirect Cost: ¥360,000)
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Outline of Final Research Achievements |
We synthesized a number of organic compounds coupling strong electron-donating and/or electron-accepting units, and analyzed them under various conditions using various physical techniques to evaluate their environmental stimulus responsiveness. The compounds connecting electron-donating and electron-accepting units became zwitterionic substances. With decreasing solvent polarity, the equilibrium shifted to the neutral biradical species corresponding to the product with intramolecular electron transfer. On the other hand, the compounds with dimerized bulky electron-donating units provided two conformational isomers. Their isomerization equilibrium constants depended on solvent viscosity. The stimuli-responsive properties and response mechanisms of the molecules developed in this project have not been reported before and are promising novel stimuli responsive material.
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