Our experimental results also indicate that higher ethane selectivity can be achieved by manipulating the pressure. A good ethane selectivity of 2.0 is experimentally observed around 20 kPa because ethane has a sharper isotherm than ethylene at 298 K. Although uptake capacity would be diminished at this pressure, this tradeoff could be a worthwhile area of exploration depending on process needs and constraints. This work provides an important starting point in the development of MOF C2 ML models driven by experimental data.