Materials Chemistry

Luminescence quenching in epitaxially grown PCN-224 type metal-organic frameworks



Core-shell and multivariant metal-organic frameworks (MOFs) of the PCN-224 type were prepared using metal-free and metalated porphyrin building blocks. Probing these MOFs with luminescence quenching upon exposure to oxygen reveals efficient gas transport and oxygen quenching in the core of the MOF. Undesirable energy transfer results in diminished contribution of the phosphorescence component in all mixed MOFs except for the physical mixture of individual crystals used as a reference.


Thumbnail image of mofonmof_manuscript.pdf

Supplementary material

Thumbnail image of mofonmof_supporting.pdf
Supporting Information
Experimental details and syntheses, optical micrographs and particle size distribution, UV-Vis spectra from digestion experiments and Stern-Volmer plots