Molecular Crystal Sponge for Extraordinary NH 3 Capture

Key Points

• The research aims to explore the mechanisms behind ammonia capture using molecular crystal sponges.
• Performed powder X-ray diffraction (PXRD) analyses to investigate crystal structure.
• Utilized modeling techniques to understand charge-assisted hydrogen bonding.
• Examined interactions between ammonia and carboxylic acid moieties.
• Identified a stepwise pore expansion associated with ammonia capture.
• Demonstrated effective charge-assisted hydrogen bonding that drives ammonia interactions.
• Proposed a conceptual blueprint for engineering soft molecular crystals targeting ammonia capture.