Fig. 5. (a) Average gas evolution measured for N2, CH4, CO2, Xe, and SF6 (average of 3 independent measurements) both for the porous liquid and for PCP; standard deviations displayed as error bars. Calculated percentage occupancies for each gas in the porous liquid are also given, where a 1 : 1 guest-to-cage ratio would equate to 100%; (b) plot converting displaced gas volume (cm3) to estimated gas uptakes in terms of μmol per gPL; (c) apparent correlation between the uptake (μmol per gcage) for a range of different gases, calculated from the volumes of gas evolved from the PL (20% w/v), with the calculated isosteric heats of adsorption for the structurally related solid porous cage, CC3-R.23,24 .
