A Bistable Polycatenane Forms Nanosuperstructures (pages 1792–1797)
Mark A. Olson, Adam B. Braunschweig, Lei Fang, Taichi Ikeda, Rafal Klajn, Ali Trabolsi, Paul J. Wesson, Diego Benítez, Chad A. Mirkin, Bartosz A. Grzybowski and J. Fraser Stoddart
Version of Record online: 29 JAN 2009 | DOI: 10.1002/anie.200804558
Side-chain polycatenanes at the click of a switch! A bistable side-chain polycatenane has been synthesized and found to form hierarchical self-assembled hollow superstructures of nanoscale dimensions in solution. Molecular electromechanical switching (see picture) of the material is demonstrated, and the ground-state equilibrium thermodynamics and switching kinetics are examined as the initial steps towards processible molecular-based electronic devices and nanoelectromechanical systems.