期刊
JOURNAL OF ORGANIC CHEMISTRY
卷 84, 期 9, 页码 5790-5802出版社
AMER CHEMICAL SOC
DOI: 10.1021/acs.joc.9b00783
关键词
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资金
- NSFC/China [21790361, 21871084, 21672060, 21421004]
- Shanghai Municipal Science and Technology Major Project [2018SHZDZX03]
- International Cooperation Program of Shanghai Science and Technology Committee [17520750100]
- Fundamental Research Funds for the Central Universities
- Programme of Introducing Talents of Discipline to Universities [B16017]
- Netherlands Ministry of Education, Culture and Science [024.001.035]
- European Research Council [694345]
Designing artificial molecular machines to execute complex mechanical tasks, like coupling rotation and translation to accomplish transmission of motion, continues to provide important challenges. Herein, we demonstrated a novel molecular machine comprising a second-generation light-driven molecular motor and a bistable [1]rotaxane unit. The molecular motor can rotate successfully even in an interlocked [1]rotaxane system through a photoinduced cis-to-trans isomerization and a thermal helix inversion, resulting in concomitant transitional motion of the [1]rotaxane. The transmission process was elucidated via H-1 NMR,H-1-H-1 COSY, HMQC, HMBC, and 2D ROESY NMR spectroscopies, UV-visible absorption spectrum, and density functional theory calculations. This is the first demonstration of a molecular motor to rotate against the appreciably noncovalent interactions between dibenzo-24-crown-8 and N-methyltriazolium moieties comprising the rotaxane unit, showing operational capabilities of molecular motors to perform more complex tasks.
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