| Budget Amount *help |
¥17,680,000 (Direct Cost: ¥13,600,000、Indirect Cost: ¥4,080,000)
Fiscal Year 2018: ¥1,820,000 (Direct Cost: ¥1,400,000、Indirect Cost: ¥420,000)
Fiscal Year 2017: ¥2,470,000 (Direct Cost: ¥1,900,000、Indirect Cost: ¥570,000)
Fiscal Year 2016: ¥2,990,000 (Direct Cost: ¥2,300,000、Indirect Cost: ¥690,000)
Fiscal Year 2015: ¥10,400,000 (Direct Cost: ¥8,000,000、Indirect Cost: ¥2,400,000)
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| Outline of Final Research Achievements |
Fast photochromism systems have been attracting interest for a wide range of applications. The acceleration of spontaneous fading reaction in the photochromic diarylethene system based on 6-pai electrocyclization reaction was attempted. Modulations in the chemical structure especially on the geometry of polycyclic closed- and colored-ring form have successfully led to the acceleration of color fading reaction. Several bulky substituents were introduced at the both sides of photochromic reactive 6-pai system, leading to a substantial acceleration of color fading reaction. A macrocyclic compound was also prepared based on a photochromic tetrathiazole, giving a strained colored form having a bicyclic structure with less thermal stability. The tetrathiazole platform was applied to chiroptical photoswitches.
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