Sensitivity of the glass transition and melting in a metal-organic framework to ligand chemistry

Chem Commun (Camb). 2022 Jan 18;58(6):823-826. doi: 10.1039/d1cc03541j.

Abstract

The effect of substituting linkers with electron-donating moieties for part of the conventional ones on the melting and glass transition behaviours of ZIF-62 was investigated by calorimetry and X-ray diffraction. Specifically, substituting 5,6-dimethylbenzimidazole for benzimidazole in ZIF-62 increases both Tm and Tg. The structural origin of this effect was explained.