Multiple Logical Access with a Single Fluorophore-Spacer-Receptor System: Realization of Inhibit (INH) Logic Function

摘要

A new fluorescent PET sensor (1) has been synthesized,the fluorescence of which switches "On" with a blue-to-green color change in the presence of Zn~(2+),Cd~(2+),or Pb~(2+) (OR logic).X-ray structure analyses of 1 and its Zn~(2+) complex reveal that the solid-state conformation is in accordance with the results observed in solution.Sensor 1 also acts as an "Off-On-Off" switch stimulated by protons.The H~+-driven "Off-On-Off" switch is integrated with a Zn~(2+)-,Cd~(2+)-,or Pb~(2+)-induced OR logic gate to construct a first INH logic gate employing these ionic inputs.