A metal–organic framework with rod secondary building unit based on the Boerdijk–Coxeter helix

Abstract

The renowned aperiodic Boerdijk-Coxeter helix is identified, with a modified, periodic form, in a MOF named ROD-1 [formulated as Cd(L), H₂L = (3,5-dimethyl-1H-(pyrazol-4-yl)-methylene)benzoic acid], which exhibits unusual gas adsorption behaviours attributed to guest-guest interactions, and also interesting structural dynamics responding to temperature variation and gas adsorption.