A SIFSIX-MOF constructed from a metalloligand yields enhanced stability for selective CO2 adsorption

Abstract

The first example of a metalloligand(ML)-based non-interpenetrated SIFSIX MOF [Cu(ML)₂(SiF₆)]_n (ML = Cu(pyac)₂ = bis[3-(4-pyridyl)pentane-2,4-dionato]copper(II)) exhibits one-dimensional pore channels decorated with accessible Cu²⁺ sites that provide superior water vapor stability and CO₂ selectivity over CH₄vs. similar materials constructed from non-metal containing organic ligands.