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Author Spotlight: Characterizing Porous Materials for Aiding the Development of Robust Metal-Organic Frameworks with Adsorption Behavior
Published on: March 8, 2024
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Robust Corrole-Based Metal-Organic Frameworks with Rare 9-Connected Zr/Hf-Oxo Clusters
Yanming Zhao1,2,3, Shibo Qi4, Zheng Niu2
1School of Chemical Engineering and Technology , Tianjin University , Tianjin 300350 , People's Republic of China.
Journal of the American Chemical Society
|August 22, 2019
Summary
We report the first corrole-based metal-organic frameworks (MOFs), Corrole-MOF-1 and Corrole-MOF-2, offering robust structures and high stability. The iron-containing Corrole-MOF-1 demonstrates efficient heterogeneous catalysis for Diels-Alder reactions.
Area of Science:
- Coordination Chemistry
- Materials Science
- Catalysis
Background:
- Corroles are important ligands in coordination chemistry, offering unique electronic properties for metal cations.
- Despite their promise, corrole units are underrepresented in porous crystalline materials for advanced functionalization.
- Systematic studies integrating corroles into functional porous materials are lacking.
Purpose of the Study:
- To construct novel corrole-based metal-organic frameworks (MOFs).
- To investigate the stability and catalytic activity of these new MOFs.
- To explore their potential in heterogeneous catalysis, specifically for Diels-Alder reactions.
Main Methods:
- Synthesis of two robust corrole-based MOFs using a custom C2-symmetric corrolic tricarboxylate ligand and D3-symmetric Zr6/Hf6 clusters.
- Characterization of the MOFs, revealing a rare (3,9)-connected gfy net structure.
- Preparation of a cationic iron corrole MOF (Corrole-MOF-1(Fe)) for catalytic studies.
Main Results:
- Successful construction of Corrole-MOF-1 (Zr) and Corrole-MOF-2 (Hf) with high chemical stability across a wide pH range.
- The MOFs exhibit a rare (3,9)-connected gfy topology.
- Corrole-MOF-1(Fe) demonstrated efficient heterogeneous catalysis for [4 + 2] hetero-Diels-Alder reactions, surpassing homogeneous and porphyrinic MOF catalysts.
Conclusions:
- The developed corrole-based MOFs represent a significant advancement in porous materials design.
- These MOFs offer excellent stability and unique structural features.
- Corrole-MOF-1(Fe) shows promising potential as a highly effective heterogeneous catalyst for specific organic transformations.
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