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04:51
Synthesis of Triazole and Tetrazole-Functionalized Zr-Based Metal-Organic Frameworks Through Post-Synthetic Ligand Exchange
Published on: June 23, 2023
Rotaxanes as ligands: from molecules to materials
1Department of Chemistry & Biochemistry, University of Windsor, Windsor, Ontario, CanadaN9B 3P4. loeb@uwindsor.ca
Chemical Society Reviews
|February 1, 2007
Summary
This review covers the supramolecular template (1,2-bis(pyridinium)ethane) subset (24-crown-8) for creating interlocked molecules. These mechanically linked molecules are used in molecular machines, coordination chemistry, and metal-organic frameworks.
Area of Science:
- Supramolecular Chemistry
- Materials Science
- Chemical Engineering
Background:
- The development of mechanically interlocked molecules (MIMs) is a significant area of research.
- Supramolecular chemistry offers powerful tools for constructing complex molecular architectures.
- Crown ethers and pyridinium salts are key components in supramolecular self-assembly.
Purpose of the Study:
- To review the discovery and applications of the (1,2-bis(pyridinium)ethane) subset (24-crown-8) supramolecular template.
- To highlight the supramolecular chemistry of pseudorotaxanes formed between pyridinium axles and crown ether wheels.
- To showcase the utility of these MIMs in constructing molecular machines, coordination complexes, and metal-organic frameworks.
Main Methods:
- Utilizing supramolecular self-assembly principles.
- Characterizing pseudorotaxane formation and structure.
- Demonstrating the incorporation of these structures into functional materials and devices.
Main Results:
- The (1,2-bis(pyridinium)ethane) subset (24-crown-8) serves as an effective supramolecular template.
- Pseudorotaxanes formed exhibit tunable properties based on axle and wheel modifications.
- These MIMs have been successfully applied in creating molecular shuttles, flip switches, coordination ligands, and metal-organic frameworks (MORFs).
Conclusions:
- The reviewed supramolecular template provides a versatile platform for synthesizing diverse mechanically interlocked molecules.
- The demonstrated applications underscore the potential of these MIMs in advanced molecular devices and materials.
- This work facilitates further exploration in the design and application of complex supramolecular systems.
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