One system, three functions: an electroactive reconfigurable organic receptor for adaptive binding, information...

Area of Science:

• Supramolecular Chemistry
• Synthetic Chemistry
• Molecular Recognition

Background:

• Living systems utilize biomolecular receptors for chemical sensing and information processing.
• Synthetic receptors can mimic biological functions for advanced applications.

Purpose of the Study:

• To design and synthesize a multifunctional synthetic receptor.
• To achieve stimuli-responsive conformational switching, programmable information encoding, and metal-free oxidation in one molecule.

Main Methods:

• Synthesis of a novel receptor with a rigid, planar core.
• Investigation of conformational changes upon chemical alkylation and guest recognition using structural analysis.
• Electrochemical studies to determine redox properties and oxidative capabilities.

Main Results:

• The receptor undergoes reversible, large-scale conformational deformation from planar to bowl-shaped.
• This transformation facilitates adaptive, induced-fit binding of various guest molecules.
• The cationic receptor species acts as an efficient metal-free oxidant for organic transformations.

Conclusions:

• A single synthetic receptor system demonstrates conformational switching, guest binding modulation, and metal-free oxidation.
• The receptor's programmable states enable tunable donor-acceptor systems for molecular information encoding and decoding.
• This work provides a blueprint for designing advanced synthetic receptors inspired by biological systems.