期刊
CHEMISTRY-A EUROPEAN JOURNAL
卷 17, 期 36, 页码 9930-9935出版社
WILEY-V C H VERLAG GMBH
DOI: 10.1002/chem.201101611
关键词
host-guest systems; noncovalent interactions; pi interactions; polymers; supramolecular chemistry
资金
- NSFC [50973051, 20974059, 20834003]
- NSFC-DFG [TRR 61]
- National Basic Research Program [2007CB808000]
Host-enhanced pi-pi interaction based on anthracene derivatives and cucurbit[8]uril can be used as the driving force for constructing water-soluble supramolecular polymers. For this purpose, two anthracene moieties were encapsulated into one cucurbit[8]uril cavity, forming a ternary complex. After encapsulation in the host, the distance between the two anthracene moieties was shortened, and the pi-pi interaction between them was enhanced significantly. To realize supramolecular polymerization, a bifunctional monomer consisting of two anthracene moieties and a short linker in between was carefully designed. Cyclization was avoided in this way. Thus, host-enhanced pi-pi interaction can function as a new driving force for supramolecular polymerization.
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