Details

Autor(en) / Beteiligte

• Jie, Kecheng
• Onishi, Nicole
• Schott, Jennifer A.
• Popovs, Ilja
• Jiang, De‐en
• Mahurin, Shannon
• Dai, Sheng

Titel

Transforming Porous Organic Cages into Porous Ionic Liquids via a Supramolecular Complexation Strategy

Ist Teil von

• Angewandte Chemie (International ed.), 2019-11, Vol.59 (6)

Ort / Verlag

United States: Wiley

Erscheinungsjahr

2019

Link zum Volltext

Quelle

Alma/SFX Local Collection

Beschreibungen/Notizen

• Porous liquids are a type of porous materials that engineer permanent porosity into unique flowing liquids, exhibiting promising functionalities for a variety of applications. In this study, a Type I porous liquid is synthesized by transforming porous organic cages into porous ionic liquids via a supramolecular complexation strategy. Simple physical mixing of 18-crown-6 with task-specific anionic porous organic cages affords a porous ionic liquid with anionic porous organic cages as the anionic parts and 18-crown-6/potassium ion complexes as the cationic parts. In contrast, mixing of 15-crown-5 and anionic porous organic cages in a 2:1 ratio gives only solids, while the addition of excess 15-crown-5 affords a Type II porous liquid. The permanent porosity in the cage-based porous liquids has been also confirmed by molecular simulation, positron (e+) annihilation lifetime spectroscopy, and enhanced gas sorption capacity compared with pure crown ethers.