Logic Control of the Fluorescence of a New Dyad, Spiropyran-Perylene Diimide-Spiropyran, with Light, Ferric Ion, and Proton: Construction of a New Three-Input “AND” Logic Gate


  • This research was financially supported by the NSFC (90 101 025), the Chinese Academy of Sciences, and the State Key Basic Research Program (G2 000 077 505). D.-Q. Zhang thanks the National Science Fund for Distinguished Young Scholars. Supporting information for this article is available online at Wiley InterScience or from the author.


The fluorescence of a novel dyad with spiropyran and perylene diimide units can be significantly enhanced only under the combined actions of UV light, protons, and ferric ions (see Figure). This behavior corresponds to a new “AND” gate with three inputs.