Thermal decarboxylation for the generation of hierarchical porosity in isostructural metal-organic frameworks containing open metal sites.

ABSTRACT: The effect of metal-cluster redox identity on the thermal decarboxylation of a series of isostructural metal-organic frameworks (MOFs) with tetracarboxylate-based ligands and trinuclear μ₃-oxo clusters was investigated. The PCN-250 series of MOFs can consist of various metal combinations (Fe₃, Fe/Ni, Fe/Mn, Fe/Co, Fe/Zn, Al₃, In₃, and Sc₃). The Fe-based system can undergo a thermally induced reductive decarboxylation, producing a mixed valence cluster with decarboxylated ligand fragments subsequently eliminated to form uniform mesopores. We have extended the analysis to alternative monometallic and bimetallic PCN-250 systems to observe the cluster's effect on the decarboxylation process. Our results suggest that the propensity to under

SUBMITTER: Drake HF 

PROVIDER: S-EPMC8366390 | biostudies-literature | 2021 Aug

REPOSITORIES: biostudies-literature