| Budget Amount *help |
¥25,090,000 (Direct Cost: ¥19,300,000、Indirect Cost: ¥5,790,000)
Fiscal Year 2019: ¥1,430,000 (Direct Cost: ¥1,100,000、Indirect Cost: ¥330,000)
Fiscal Year 2018: ¥9,230,000 (Direct Cost: ¥7,100,000、Indirect Cost: ¥2,130,000)
Fiscal Year 2017: ¥14,430,000 (Direct Cost: ¥11,100,000、Indirect Cost: ¥3,330,000)
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| Outline of Final Research Achievements |
Foldamer is an oligomer or polymer adopting a specific compact conformation, the structures of which are stabilized by a collection of noncovalent interactions among monomer units. The change of physical properties associated with the structural changes of foldamers in the solid state are targeted in this study. One of the designs of the foldamers employs the alternating polymers of conjugated molecules and flexible linkers, while the other consists of conjugated oligomers (oligothiophene) and rotating hinges (ferrocene). These foldamers were synthesized and revealed to show folding behaviors in solution, where the electronic interactions of adjacent conjugated segments were analyzed by absorption and fluorescence spectroscopy. In the dropcast films, folding structures were partly observed, but the purity of the structures in whole the area was low. Meanwhile, the dimer model compounds yielded perfect crystalline closed-form structures in the solid state.
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