Dual-Mode Operation of a Bistable [1]Rotaxane with a Fluorescence Signal
2013
We report the operation of a ferrocene-based bistable [1]rotaxane that can work in two parallel platforms. In an “active” signal mode, the relative mechanical movement of its ring and thread in response to external acid–base-stimuli can result in a remarkable fluorescence signal output observed by the naked eye, whereas no obvious fluorescence change occurred in a “silent” signal mode after oxidation. Its fluorescence responses to the different combinations of DBU and/or Fe(ClO4)3 corresponds to an INHIBIT logic gate.
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