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Communication | Special issue | Vol 80, No. 2, 2010, pp.819-823
Published online, 3rd September, 2009
DOI: 10.3987/COM-09-S(S)92
Preparation and Photochemical Properties of [2]Rotaxanes Containing an Aniline Moiety Encapsulated by Crown Ethers

Yuji Tokunaga,* Satoshi Nakashima, Takuya Iwamoto, Kei Gambayashi, Kenji Hisada, and Tomonori Hoshi

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


This paper describes preparation of rotaxanes having an aniline moiety in the axle and crown ethers as wheels through an imine formation reaction and hydrogen-bond-guided self-assembly. UV-vis and emission measurements of the rotaxanes show that both absorption and fluorescence bands shift to longer wavelengths as compared to those of the unencapsulated axle component.