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Switching porosity of stable triptycene-based cage via solution-state assembly processes.

ABSTRACT: It is a great challenge to tune the porosity of porous materials. As most porous organic cages are soluble, solution processability can be a possible way to regulate the porosity of such materials. Herein, a triptycene-based cage (TC) is demonstrated to be stable in acid, base or boiling water. Meanwhile, its porosity can be tuned by adjusting the solution-state assembly processes. TC molecules crystallized slowly from solution exhibit nearly no porosity to nitrogen (off-state). While, after rapid precipitating from methanol/dichloromethane solution, the obtained TC (TC-rp) is in a porous state and exhibit a high BET surface area of 653 m² g^-1 (on-state).

SUBMITTER: Ma H

PROVIDER: S-EPMC9050043 | biostudies-literature | 2020 Feb

REPOSITORIES: biostudies-literature

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Switching porosity of stable triptycene-based cage via solution-state assembly processes.

Ma Hui H Zhai Tian-Long TL Wang Zhen Z Cheng Guang G Tan Bien B Zhang Chun C

RSC advances 20200201 15

It is a great challenge to tune the porosity of porous materials. As most porous organic cages are soluble, solution processability can be a possible way to regulate the porosity of such materials. Herein, a triptycene-based cage (TC) is demonstrated to be stable in acid, base or boiling water. Meanwhile, its porosity can be tuned by adjusting the solution-state assembly processes. TC molecules crystallized slowly from solution exhibit nearly no porosity to nitrogen (off-state). While, after rap ...[more]

PMID: 35496542

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