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Exploring porous structures without crystals: advancements with pair distribution function in metal- and covalent
Ignacio Romero-Muñiz1, Edward Loukopoulos1, Ying Xiong1
1Departamento de Química Inorgánica Facultad de Ciencias, Universidad Autónoma de Madrid, Campus de Cantoblanco, 28049 Madrid, Spain. ana.platero@uam.es.
Pair distribution function (PDF) analysis offers detailed insights into porous materials like metal-organic frameworks (MOFs) and covalent organic frameworks (COFs). This method reveals molecular interactions and structural transformations, advancing porous materials research.
Area of Science:
- Materials Science
- Chemistry
Background:
- Pair distribution function (PDF) analysis is a key characterization technique in materials science.
- It retrieves atom-atom distances across various scales without sample crystallinity constraints.
Purpose of the Study:
- To review the significance of PDF analysis in understanding Metal-Organic Frameworks (MOFs) and Covalent Organic Frameworks (COFs).
- To highlight PDF's role in addressing current characterization challenges in porous materials.
Main Methods:
- Utilizes total scattering experiments with high-energy synchrotron X-rays, neutrons, or electrons.
- Applies PDF analysis to investigate molecular interactions, structural transformations, and nucleation/growth mechanisms.
Main Results:
- PDF analysis provides high atomic resolution and rapid characterization.
- It elucidates complex structural behaviors and interfacial phenomena in MOFs and COFs.
Conclusions:
- PDF analysis is crucial for advancing the understanding of MOFs and COFs.
- This technique paves the way for novel applications and discoveries in porous materials research.
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