Controlling Gas Selectivity in Molecular Porous Liquids by Tuning the Cage Window Size
2019
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.
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