“…To overcome this problem, we propose using dimethyl ether (DME) as an activation solvent because of its very low boiling point (−24 °C) which will make evacuation facile. [ 16 , 17 , 18 , 19 ] Moreover, the surface tension of DME (12 mN m −1 ) is much lower than commonly used activation solvents such as CH 2 Cl 2 , acetone, DMF, minimizing capillary forces during solvent removal. We propose that DME can displace solvent that is adsorbed in the pores as well as solvent coordinated to the framework.…”