Combining unsaturated metal sites and narrow pores within a Co()-based MOF towards CO separation and transformation

A Co( ii )-based MOF, {[Co 3 (L) 2 (bpb)(DMA)(H 2 O)]·Solvents} n ( RH-1 ), with a unique interpenetrated framework has been solvothermally prepared. Because of its unsaturated metal sites and narrow pores inside the framework, RH-1 demonstrated excellent selective CO 2 adsorption over N 2 and CH 4 and good performance in catalytic CO 2 conversion to cyclic carbonates under mild conditions. Combining unsaturated metal sites and narrow pores within one framework, a unique Co II -MOF have been prepared, which reveals excellent selective CO 2 uptake over N 2 and CH 4 , and good performances in catalytic CO 2 conversion to cyclic carbonates.