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Experimental Approaches for the Synthesis of Low-Valent Metal-Organic Frameworks from Multitopic Phosphine Linkers
Published on: May 12, 2023
Metal-organic B←N frameworks
Atena B Solea1, Sophia Outenah1, Farzaneh Fadaei-Tirani1
1Institut des Sciences et Ingénierie Chimiques, École Polytechnique Fédérale de Lausanne (EPFL) 1015 Lausanne Switzerland kay.severin@epfl.ch.
Chemical Science
|August 7, 2026
Summary
Researchers created novel metal-organic frameworks using dative boron-nitrogen bonds. These crystalline materials exhibit dynamic structural changes, showing potential for advanced material design.
Area of Science:
- Materials Science
- Supramolecular Chemistry
- Inorganic Chemistry
Background:
- Metal-organic frameworks (MOFs) are crystalline porous materials with diverse applications.
- Dative boron-nitrogen (B←N) bonds offer unique dynamic and reversible interactions.
- Gold complexes present opportunities for novel framework construction.
Purpose of the Study:
- To synthesize and characterize new metal-organic frameworks utilizing dative B←N bonds.
- To investigate the structural dynamics and adaptability of these gold-containing frameworks.
- To explore the potential of B←N interactions in designing functional materials.
Main Methods:
- Synthesis of gold-containing metal-organic frameworks by linking Au3(pyrazolate)3 complexes to boronate esters via dative B←N bonds.
- Structural characterization using single-crystal X-ray diffraction.
- Investigation of framework response to solvent exchange with halobenzenes.
Main Results:
- Formation of highly crystalline one- and two-dimensional polymers through dynamic B←N interactions.
- Observation of substantial solvent-filled voids within the framework structures.
- Demonstration of pronounced structural changes upon solvent exchange, highlighting framework adaptability.
Conclusions:
- Dative B←N bonds are effective in constructing crystalline metal-organic frameworks with gold complexes.
- The dynamic nature of B←N interactions allows for significant structural adaptability.
- These findings showcase the potential of B←N bonds for designing novel, responsive metal-based materials.
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