Enhanced water stability of a microporous acylamide-functionalized metal--organic framework via interpenetration and methyl decoration.

A microporous acylamide-functionalized MOF with a 2-fold interpenetrated and methyl decorated framework (HNUST-4) has been designed and synthesized from [Cu₂(COO)₄] motifs and a C₂-symmetric acylamide-linking tetracarboxylate, which exhibits good water stability, permanent porosity as well as high and selective CO₂ uptake at ambient temperature. [ABSTRACT FROM AUTHOR]