2015 Fiscal Year Final Research Report
Development of Flip-flop Photochromic Reaction System
| Project/Area Number |
26540126
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| Research Category |
Grant-in-Aid for Challenging Exploratory Research
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| Allocation Type | Multi-year Fund |
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| Research Field |
Soft computing
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| Research Institution | Yamaguchi University |
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Principal Investigator |
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| Project Period (FY) |
2014-04-01 – 2016-03-31
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| Keywords | フリップ・フロップ / フォトクロミズム / 光異性化 |
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| Outline of Final Research Achievements |
Flip-flop is a fundamental building block of digital electronics, in which two stable states can be switched by an external trigger pulse. Realization of flip-flop reactions may be an interesting challenge in chemistry, and such reactions may be designed using norbornadiene (N) & quadricyclane (Q) photochromic systems substituted with carboxylic acid. If a two-phase system consisting an aqueous layer with appropriate pH for solving only N and an organic layer solving Q and the photosensitizer is irradiated, N in aqueous phase is selectively isomerized to Q while Q in organic phase is sensitized resulting in the reverse isomerization to N. The acidity of a substituted N with carboxylic acid was found to have an acidity higher than that of the quadricyclane counterpart by about 2 pKa, and sufficient difference in solubility in two phases could be achieved. Study of the sensitized reverse reaction in organic phase is currently in progress.
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| Free Research Field |
有機反応化学
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