A kinetically controlled molecular switch based on bistable [2]rotaxaneElectronic supplementary information (ESI) available: synthetic procedure and characterization data of 1 and colour versions of Schemes 1 and 2. See http://www.rsc.org/suppdata/cc/b1/b103380h/
Abstract
A bistable [2]rotaxane that behaves as a kinetically controlled molecular switch is synthesized; switching from one state to the other is driven by pH change but the reverse process requires pH change plus thermal activation.