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Crystalline porous organic salts
Guolong Xing1,2,3, Daoling Peng2,4, Teng Ben1,2,3
1Zhejiang Engineering Laboratory for Green Syntheses and Applications of Fluorine-Containing Specialty Chemicals, Institute of Advanced Fluorine-Containing Materials, Zhejiang Normal University, Jinhua, 321004, P. R. China. tengben@zjnu.edu.cn.
Crystalline porous organic salts (CPOSs) are tunable porous materials formed by ionic bonds. This review details their synthesis, structure, and diverse applications, including gas transport and catalysis.
Area of Science:
- Materials Science
- Supramolecular Chemistry
- Organic Chemistry
Background:
- Crystalline porous organic salts (CPOSs) are emerging porous materials formed via self-assembly of organic acids and bases through ionic bonding.
- Their unique properties stem from ionic interactions, polar nano-confined channels, and permanent porosity.
Purpose of the Study:
- To systematically review the recent advancements in CPOS research.
- To elucidate synthetic strategies, structural characteristics, and applications of CPOSs.
- To differentiate CPOSs from hydrogen-bonded organic frameworks (HOFs).
Main Methods:
- Review of existing literature on CPOS synthesis and characterization.
- Analysis of structural features and physicochemical properties.
- Compilation of reported applications and future research directions.
Main Results:
- CPOSs can be efficiently constructed by controlling molecular design, acidity/basicity, and topology.
- Unique properties arise from ionic bonds, charge-separated channels, and permanent porosity.
- Diverse applications demonstrated in negative linear compression, ion/gas transport, water harvesting, and catalysis.
Conclusions:
- CPOSs represent a versatile class of porous materials with significant potential.
- Further research is needed to overcome challenges and unlock new applications.
- This review provides a comprehensive overview for researchers in the field.
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