| Budget Amount *help |
¥111,150,000 (Direct Cost: ¥85,500,000、Indirect Cost: ¥25,650,000)
Fiscal Year 2016: ¥10,920,000 (Direct Cost: ¥8,400,000、Indirect Cost: ¥2,520,000)
Fiscal Year 2015: ¥10,920,000 (Direct Cost: ¥8,400,000、Indirect Cost: ¥2,520,000)
Fiscal Year 2014: ¥10,920,000 (Direct Cost: ¥8,400,000、Indirect Cost: ¥2,520,000)
Fiscal Year 2013: ¥15,990,000 (Direct Cost: ¥12,300,000、Indirect Cost: ¥3,690,000)
Fiscal Year 2012: ¥62,400,000 (Direct Cost: ¥48,000,000、Indirect Cost: ¥14,400,000)
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| Outline of Final Research Achievements |
Transient and low-temperature absorption spectroscopic analyses revealed that two different singlet diradicals, namely, the envelope-like diradical (λmax ~450 nm) and the planar diradicals (λmax ~570 nm), intervened in the photodenitrogenation reaction. The envelope-like diradical produced the retention product while the planar diradical selectively afforded the inverted one.
In this study, a thermal equilibrium between a singlet 1,2-diazacyclopentane-3,5-diyl diradical with π-single bonding nature and the corresponding σ-bonded compound was directly observed. The π-single bonded species was more stable in enthalpy than the σ-bonded compound. The solvent effect clarified key feature, such as the zwitterionic character of the π-single bonded species.
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