Expansion of Pore Size and Interlayer Distance in a Kagomé-Type MOF Engineered through the Geometric Features of Azulene

Key Points

• The aim is to explore how geometric features of azulene affect the properties of Kagomé-type MOFs.
• Synthesize a Kagomé-type MOF using 1,3-azulenedicarboxylate ligands.
• Compare filtration and adsorption behavior with isomorphous MOFs featuring a benzene motif.
• Analyze interlayer distances and pore sizes.
• Azln-KGM shows greater maximum adsorption capacity than benzene-based isomorphs.
• Demonstrated significant gate-opening behavior under varying conditions.