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Porous organic cages (POCs) are versatile crystalline materials with tunable structures and good solubility. This review details their recent design, synthesis, characterization, and applications in various fields.

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Area of Science:

  • Materials Science
  • Supramolecular Chemistry
  • Nanotechnology

Background:

  • Porous organic cages (POCs) are emerging crystalline materials with low density.
  • POCs offer advantages like high surface area, porosity, and tunable structures.
  • Unlike insoluble frameworks (MOFs, COFs, POPs), POCs exhibit good solubility for enhanced processability.

Purpose of the Study:

  • To provide a comprehensive review of recent advancements in porous organic cages (POCs).
  • To analyze the strategic design, synthesis, characterization, and applications of POCs.
  • To explore structure-function relationships and future opportunities in POC research.

Main Methods:

  • Critical review of literature focusing on the past five years of POC research.
  • Detailed examination of POC design and synthesis strategies, including dynamic covalent chemistry.
  • Analysis of advanced characterization techniques and diverse application case studies.

Main Results:

  • Summarizes breakthroughs in POC design, synthesis, and characterization.
  • Highlights diverse applications including molecular recognition, gas storage/separation, and catalysis.
  • Identifies key structure-function relationships through representative POC examples.

Conclusions:

  • Porous organic cages offer unique advantages over traditional porous materials due to their solubility and discrete structures.
  • Continued research in POCs promises advancements in areas like porous liquids, membranes, and catalysis.
  • This review serves as a valuable resource for researchers developing novel POCs with tailored functionalities.