Controlling Gas Selectivity in Molecular Porous Liquids by Tuning the Cage Window Size

12 November 2019, Version 1
This content is a preprint and has not undergone peer review at the time of posting.


Control of pore window size is the standard approach for tuning gas selectivity in porous solids. Here, we present the first example where this is translated into a molecular porous liquid formed from organic cage molecules. Reduction of the cage window size by chemical synthesis switches the selectivity from Xe-selective to CH4-selective, which is understood using 129Xe, 1H, and pulsed-field gradient NMR spectroscopy.


Porous liquids
Porous organic cages
Adsorption selectivity

Supplementary materials

Egleston Controlling Gas Selectivity in Molecular Porous Liquids SI


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