| Project/Area Number |
16K13984
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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 |
Functional solid state chemistry
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| Research Institution | Wakayama National College of Technology |
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Principal Investigator |
Kawaji Takatoshi 和歌山工業高等専門学校, 生物応用化学科, 准教授 (30290779)
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| Project Period (FY) |
2016-04-01 – 2018-03-31
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| Project Status |
Completed (Fiscal Year 2017)
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| Budget Amount *help |
¥3,900,000 (Direct Cost: ¥3,000,000、Indirect Cost: ¥900,000)
Fiscal Year 2017: ¥390,000 (Direct Cost: ¥300,000、Indirect Cost: ¥90,000)
Fiscal Year 2016: ¥3,510,000 (Direct Cost: ¥2,700,000、Indirect Cost: ¥810,000)
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| Keywords | ロタキサン / 光異性化 / 水溶性 / 一方向並進運動 / シクロデキストリン / アゾベンゼン / スチルベン / 一方向移動 / 超分子化学 / 分子機械 / ナノマシン / 分子モーター / 合成化学 |
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| Outline of Final Research Achievements |
We have examined synthesis of a water-soluble [2]rotaxane interlocked α-cyclodextrin (α-CD) on a dumbbell component containing photoisomerizable azobenzene and stilbene stations with the aim of development of molecular ratchets system (unidirectional translation), one of essential function for molecular machine.
An azobenzene-CD[2]rotaxane was synthesized, a fractional structure of the target molecule. ROESY analyses of the [2]rotaxane in alkaline D2O solution demonstrated that the α-CD ring located on the (E)-form station. Then, photoisomerization of the station to (Z)-form by irradiation of 360 nm light for 2 hours pushed the α-CD ring out of the station in the direction with turning the narrow opening (6-rim) toward the station.
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