A clicked bistable [2]rotaxane |
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Authors: | Aprahamian Ivan Dichtel William R Ikeda Taichi Heath James R Stoddart J Fraser |
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Institution: | California NanoSystems Institute, and Department of Chemistry and Biochemistry, University of California, Los Angeles, Los Angeles, CA 90095, USA. |
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Abstract: | structure: see text]. A universal diazide-terminated polyether, incorporating tetrathiafulvalene (TTF, green) and 1,5-dioxynaphthalene (DNP, red) units, was prepared and subsequently employed in the template-directed synthesis of a switchable donor/acceptor 2]rotaxane. The triazole rings (magenta), which are introduced into the rotaxane during requisite click reactions, do not present themselves as competing recognition sites for the tetracationic cyclophane (blue) as it is induced to switch between the TTF unit, when it becomes dicationic (green adorned with yellow extremities), and the DNP unit. |
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