气候变化领域集成服务门户(CCPortal): A precise polyrotaxane synthesizer

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DOI	10.1126/science.abb3962
	A precise polyrotaxane synthesizer
	Qiu Y.; Song B.; Pezzato C.; Shen D.; Liu W.; Zhang L.; Feng Y.; Guo Q.-H.; Cai K.; Li W.; Chen H.; Nguyen M.T.; Shi Y.; Cheng C.; Dean Astumian R.; Li X.; Fraser Stoddart J.
发表日期	2020
ISSN	0036-8075
起始页码	1247
结束页码	1253
卷号	368 期号:6496
英文摘要	Mechanically interlocked molecules are likely candidates for the design and synthesis of artificial molecular machines. Although polyrotaxanes have already found niche applications in exotic materials with specialized mechanical properties, efficient synthetic protocols to produce them with precise numbers of rings encircling their polymer dumbbells are still lacking. We report the assembly line-like emergence of poly[n]rotaxanes with increasingly higher energies by harnessing artificial molecular pumps to deliver rings in pairs by cyclical redox-driven processes. This programmable strategy leads to the precise incorporation of two, four, six, eight, and 10 rings carrying 8+, 16+, 24+, 32+, and 40+ charges, respectively, onto hexacationic polymer dumbbells. This strategy depends precisely on the number of redox cycles applied chemically or electrochemically, in both stepwise and one-pot manners. © 2020 The Authors, some rights reserved; exclusive licensee American Association for the Advancement of Science. No claim to original U.S. Government Works.
语种	英语
来源机构	Science
文献类型	期刊论文
条目标识符	http://gcip.llas.ac.cn/handle/2XKMVOVA/133435
推荐引用方式 GB/T 7714	Qiu Y.,Song B.,Pezzato C.,et al. A precise polyrotaxane synthesizer[J]. Science,2020,368(6496).
APA	Qiu Y..,Song B..,Pezzato C..,Shen D..,Liu W..,...&Fraser Stoddart J..(2020).A precise polyrotaxane synthesizer.,368(6496).
MLA	Qiu Y.,et al."A precise polyrotaxane synthesizer".368.6496(2020).