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Communication | Regular issue | Vol 63, No. 12, 2004, pp.2713-2718
Published online, 26th October, 2004
DOI: 10.3987/COM-04-10217
Selective Recognition of Rotaxanes for an Alkali Metal Ion

Yuji Tokunaga,* Suzuka Kakuchi, and Youji Shimomura

*Department of Materials Science and Engineering, Faculty of Engineering, Fukui University, Bunkyo, Fukui 910-8507, Japan


Rotaxanes possessing a crown ether as a wheel group and oligo ethylene glycol units in the dumbbell group were synthesized using hydrogen bonding guided self-assembly and diphenyldiazomethane ester forming end-capping of pseudorotaxanes. The selective recognition of the lariat-crown-like rotaxanes for lithium ion was discovered. That recognition depended on the number of ethylene glycol units.