Microwave-assisted syntheses of highly CO2-selective organic cage frameworks (OCFs)

Abstract
A series of organic cage frameworks (OCFs) were successfully synthesized through microwave-assisted Sonogashira coupling of 3-D molecular cage building blocks with various diacetylene linkers. These novel framework materials exhibited unprecedented, high ideal selectivity (up to 213/1) in adsorption of CO2 over N2 under ambient conditions.