RP-H200 hydrogen-bonded organic crystal framework with largest pores in its class; exceptionally stable methane, hydrogen storage

https://phys.org/news/2025-05-large-pore-molecular-crystals-energy.html

"organic molecules linked through noncovalent interactions... crystals with large porosity lack stability, overcome with noncoplanar assembly using imidazole-annulated triptycene hexaacids... molecules self-assemble into double-walled, honeycomb-like structure, creating 3.6-nm pores lined with 2,313 m²/g aromatic surface area... withstands temperatures up to 350°C, harsh solvents (ethanol)... stores 0.31 grams methane/ gram... also stores 6.7% of its weight in hydrogen... withstands repeated adsorption cycles"

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