| Budget Amount *help |
¥4,420,000 (Direct Cost: ¥3,400,000、Indirect Cost: ¥1,020,000)
Fiscal Year 2018: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
Fiscal Year 2017: ¥2,210,000 (Direct Cost: ¥1,700,000、Indirect Cost: ¥510,000)
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| Outline of Final Research Achievements |
In this study, we planed to synthesize anthracene congested molecular structures, that is, pi-cluster mokecule, to explore fundermental properties, such as long-wavelength absorption, emission, electron donating property, or intramolecular photoisomerization behavior, in pi-congested aromatic molecules. Although one of the target molecules 1,2,3,4-tetra(9-anthryl)benzene could not be obtained in this reaserch period, we could synthesize a highly congested tri(9-anthryl)methyl (TAntM) radical and its cationic species. Due to the bulky three anthryl units, TAntM radical showed ultimate stability under ambient condition, resulting in facile silica-gel column purification as well as recrystallization under air. In addition, TantM radical shows wide range absorption reaching to 1000 nm and good redox properties.
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