| Project/Area Number |
17550124
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| Research Category |
Grant-in-Aid for Scientific Research (C)
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| Allocation Type | Single-year Grants |
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| Section | 一般 |
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| Research Field |
Functional materials chemistry
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| Research Institution | Ochanomizu University |
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Principal Investigator |
OGAWA Shojiro Ochanomizu University, Graduate School of Humanities and Sciences, Professor, 人間文化研究科, 教授 (20013196)
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| Project Period (FY) |
2005 – 2006
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| Project Status |
Completed (Fiscal Year 2006)
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| Budget Amount *help |
¥3,100,000 (Direct Cost: ¥3,100,000)
Fiscal Year 2006: ¥800,000 (Direct Cost: ¥800,000)
Fiscal Year 2005: ¥2,300,000 (Direct Cost: ¥2,300,000)
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| Keywords | macrocvcle / 1,10-phenanthroline / crown ether / photo-isomerization / lithium / complex / active methvlene compound / ピリジン |
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| Research Abstract |
The purpose of this study is the synthesis of photo-isomerizable macrocyclic compounds containing pyridine moieties and polyether in the ring which can capture lithium ion selectively. We succeeded the synthesis of the macrocycle by the reaction of 2,9-dichloro-1,10-phenanthroline with triethylene glycohol containing cyanoacetic esters in the both ends under the existence of strong base such as sodium hydride. Although the obtained macrocycle is yellow-colored because of its conjugated structure, it isomerizes and turns to colorless by irradiation of ultra-violet light. This compound captures lithium ion very selectively in solution unless uv light is irradiated. On the other hand, lithium ion-captured macrocycle did not isomerize even if uv light was irradiated. Furthermore, the macrocycle whose structure was changed by uv light did not become to capture lithium ion.
It will be expected in the future that the compound will be of use for the control of transport of lithium ion by light.
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