Bottom-up assembly of a porous MOF based on nanosized nonanuclear zinc precursors for highly selective gas adsorption

Abstract

A step-by-step assembly of a highly porous MOF from a predesigned giant nanosized nonanuclear zinc precursor and a length-extendable organic linker with functional triazole groups bearing exposed uncoordinated nitrogen sites has been achieved. The open N-donor sites lead to a highly selective CO2 over CH4 adsorption capacity. Moreover, non-coordinating groups in the channel surfaces behave as a gate function.