| Budget Amount *help |
¥4,940,000 (Direct Cost: ¥3,800,000、Indirect Cost: ¥1,140,000)
Fiscal Year 2017: ¥1,300,000 (Direct Cost: ¥1,000,000、Indirect Cost: ¥300,000)
Fiscal Year 2016: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2015: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
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| Outline of Final Research Achievements |
In this study, we investigated a new approach to the synthesis of fluorinated phenanthrene derivatives using Mallory reaction (irreversible photocyclization of diarylhexafluorocyclopentenes). We also synthesized fluorine-containing copolymers expected as n-type organic semiconductors.
All the copolymers showed good solubility in typical organic solvents and had high thermal stability at approximately 400 °C in Ar atmosphere. UV-vis spectra of Phenanthrene-type copolymers in chloroform showed pi-pi* transition peaks at 380 nm and 354 nm, respectively, and additional shoulder peaks appeared at a longer wavelength in the film cast on a quartz plate, suggesting the molecular assembly of the polymer molecules. The copolymers showed photoluminesence (PL) in both chloroform and the film. XRD patterns of the copolymers gave a sharp peak around 19 °, indicating that the copolymer molecules took highly-ordered structure in the solid state.
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