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Updated: Jun 12, 2026
11:27
Synthesis and Characterization of Functionalized Metal-organic Frameworks
Published on: September 5, 2014
Ring-opening reactions within porous metal-organic frameworks
David Britt1, Chain Lee, Fernando J Uribe-Romo
1Center for Reticular Chemistry at the California NanoSystems Institute, Department of Chemistry and Biochemistry, University of California-Los Angeles, 607 East Charles E. Young Drive, Los Angeles, California 90095, USA. dbritt@chem.ucla.edu
Inorganic Chemistry
|June 22, 2010
Summary
New metal-organic framework (MOF) structures were created by ring-opening reactions, permanently adding sulfonate and alkyamine groups. This versatile method preserves the MOF structure and porosity for advanced material applications.
Area of Science:
- Materials Science
- Chemistry
- Nanotechnology
Background:
- Metal-organic frameworks (MOFs) offer tunable porosity and high surface areas.
- Functionalization of MOFs is crucial for tailoring their properties and applications.
- Existing methods for MOF functionalization can be limited in scope and permanence.
Purpose of the Study:
- To develop a versatile and permanent functionalization strategy for MOFs.
- To synthesize new MOF structures with covalently linked sulfonate and alkyamine units.
- To investigate the impact of functionalization on MOF structural integrity and porosity.
Main Methods:
- Ring-opening reactions using 1,3-propanesultone and 2-methylaziridine.
- Post-synthetic modification of an amine-functionalized MOF (IRMOF-3).
- Characterization using powder X-ray diffraction (PXRD) and nitrogen adsorption (BET analysis).
Main Results:
- Successful synthesis of two new MOF structures, IRMOF-3b and IRMOF-3c.
- Permanent incorporation of sulfonate and alkyamine functionalities via covalent linkage.
- Preservation of the parent MOF framework structure and high porosity after functionalization.
- Achieved Brunauer-Emmett-Teller (BET) surface areas of 1380 m²g⁻¹ and 530 m²g⁻¹ for the new MOFs.
Conclusions:
- Ring-opening reactions represent a versatile route for irreversible MOF functionalization.
- This method allows for the introduction of functionalities difficult to achieve through other means.
- The synthesized MOFs retain structural integrity and porosity, enabling potential applications in catalysis, separation, and sensing.
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