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Guest Segregation in Heteromeric Multicage Systems
Elie Benchimol1, Andrea Rivoli2,3, Michele Kabiri1
1Department of Chemistry and Chemical Biology, TU Dortmund University, Otto-Hahn Str. 6, 44227 Dortmund, Germany.
Journal of the American Chemical Society
|January 17, 2025
Summary
This study introduces a novel multicage system that achieves pathway-independent guest segregation. This breakthrough in supramolecular chemistry enables complex host-guest interactions and mimics biological networks.
Area of Science:
- Supramolecular Chemistry
- Coordination Chemistry
- Systems Chemistry
Background:
- Metallo-supramolecular assemblies mimic biological networks.
- Controlling nonstatistical self-assembly is key for complex systems.
- Heteromeric competitive self-sorting enables coformation of multiple assemblies.
Purpose of the Study:
- Describe the first instance of emergent functionality from a heteromeric multicage system.
- Demonstrate pathway-independent guest segregation under thermodynamic control.
- Establish a basis for dynamic transformation processes in multicage host-guest systems.
Main Methods:
- Utilized heteroleptic and homoleptic coordination cages.
- Investigated equilibrium coexistence of multiple cages.
- Analyzed guest encapsulation and segregation within cage cavities.
Main Results:
- Achieved guest segregation via distinct sequential transformations.
- Demonstrated a pathway-independent final state with three coexisting host-guest species.
- Observed emergent functionality from the heteromeric multicage system.
Conclusions:
- The heteromeric multicage system exhibits simplexity, yielding ordered, pathway-independent outcomes.
- This work expands the scope of dynamic transformations in host-guest chemistry.
- Future applications include compound separation, cascade reactions, and molecular information processing.
