Metal-Organic Frameworks (MOFs) are porous compounds containing inorganic metal ions/clusters linked through organic ligands to form three-dimensional structures with a high internal surface areas. MOFs have been analyzed extensively due to their multiple applications such as gas storage and separation, catalysis, and chemical sensing. MOFs can possess nanoscale pores, which affords these materials the ability to encapsulate a variety of guests including gases and small organic molecules. UiO-type MOFs, constructed from zirconium(IV) clusters and linear dicarboxylate spacer ligands are a prototypical example of a well-studied MOF platform. In this project, we sought to incorporate fluorescent guest molecules into the pores of these UiO MOFs. The spectroscopy of these guest molecules would be studied to characterize the pores and enhance the properties of these MOFs (i.e. increased gas uptake, catalysis, etc.). Additionally, the zirconium(IV)metal centers within UiO-MOFs possess empty d orbitals that limit the fluorescence quenching from metal-ligand charge transfer interactions. The stability and structure of the UiO MOFs synthesized in our lab was determined by Powder X-ray Diffraction and Thermogravimetric Analysis (TGA). While TGA, FT-IR, fluorescence spectroscopy, and gas sorption analysis were employed to identify the presence of the guest molecules within the pores of the MOF.<br/> <br/> <br/>

Incorporating fluorescent probes into the cavities of a metal-organic framework

2019 Spring National Meeting

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