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A Clicked Bistable [2]Rotaxane

By Ivan Aprahamian, William R. Dichtel, Taichi Ikeda, James R. Heath and J. Fraser Stoddart

Abstract

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

Publisher: 'American Chemical Society (ACS)'
Year: 2007
OAI identifier: oai:authors.library.caltech.edu:78014

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