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Updated: May 23, 2026

Magnetometric Characterization of Intermediates in the Solid-State Electrochemistry of Redox-Active Metal-Organic Frameworks
Published on: June 9, 2023
A stereodynamic and redox-switchable encapsulation-complex containing a copper ion held by a tris-quinolinyl basket
Sandra Stojanović1, Daniel A Turner, Andrew I Share
1Department of Chemistry, The Ohio State University, 100 W. 18th Avenue, Columbus, OH 43210, USA.
Researchers explored copper ion coordination with a chiral molecule, creating a redox-switchable system. This system can capture acetonitrile, demonstrating potential for selective molecular entrapment.
Area of Science:
- Coordination chemistry
- Supramolecular chemistry
- Chiral recognition
Background:
- Chiral molecules offer unique binding sites.
- Copper ions (Cu(I)/Cu(II)) exhibit versatile coordination behavior.
- Developing switchable host-guest systems is a key challenge.
Purpose of the Study:
- To investigate the coordination of Cu(I)/Cu(II) ions to the chiral basket (S(3))-1.
- To establish a copper redox-switchable system for molecular entrapment.
- To explore the binding of acetonitrile (CH(3)CN) within the system.
Main Methods:
- Experimental studies (e.g., spectroscopy, crystallography).
- Computational modeling (e.g., DFT calculations).
- Synthesis and characterization of copper-chiral basket complexes.
Main Results:
- The chiral basket (S(3))-1 successfully coordinates with both Cu(I) and Cu(II) ions.
- Evidence for a copper redox-switchable system was obtained.
- The system demonstrated the capability to entrap acetonitrile (CH(3)CN).
Conclusions:
- The chiral basket forms stable complexes with copper ions.
- A novel copper redox-switchable system with guest-binding properties has been developed.
- This system shows promise for selective acetonitrile capture and separation.
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