Preferential CO 2 adsorption by an ultra-microporous zinc-aminotriazolato-acetate MOF.

Ultramicroporous MOFs enable tight packing of the active functional groups, directly impacting the selective guest-framework interactions. MOFs with pores simultaneously lined by methyl and amine may serve as the ultimate humid CO 2 sorbent. However, structural complexity prevents taking full advantage even in a simple zinc-triazolato-acetate layered-pillared MOF.