Thermally and electrochemically controllable self-complexing molecular switches.

Self-complexing molecular systems are obtained when an arm component (a pi-donor) is covalently linked to a preformed macrocycle (a pi-acceptor). The resulting self-complexing compounds are not only attractive in relation to their topology, but also for their potential to undergo reversible movements, i.e., the arm can be driven out of or into the cavity of the linked macrocycle in response to temperature or applied voltage. These structurally sensitive changes render them potential thermosensors or electroswitches.