A Dual-Responsive Cationic Acridinium Nanohoop: Redox Activity and Acid/Base-Controlled Reversible Guest Capture and Release

Key Points

• The aim is to explore the redox activity and reversible guest capture of a nitrogen-doped cationic acridinium nanohoop.
• Constructed a nitrogen-doped cycloparaphenylene derivative, Ad[10]CPP+, using acridinium as a building block.
• Investigated the redox activity of the compound under varying conditions.
• Assessed the ability of the compound to capture and release guest molecules in response to changes in pH.
• Demonstrated significant reversibility in guest capture and release.
• Showed that the redox activity influences the binding capacity of the nanohoop.
• Highlighted that pH changes effectively control the guest interactions.