Metal-organic frameworks (MOFs) consist of metal ion centers complexed with organic linkers to form an extended three-dimensional, porous structure. These materials have broad applications in separation, small molecule storage, catalysis, and increasingly in analytical sensing. In particular, luminescence-based sensing should be possible by preparation of luminescent metal-organic frameworks (LMOFs) whose photophysical properties vary upon changing host-guest interactions. In the current work, LMOFs are prepared from zinc(II) ions and luminescent transition metal complexes of ruthenium, osmium, or rhenium. Systematic alterations are made to the ligands of the luminescent transition metal complexes in order to discern the impact on three-dimensional MOF structure and photoluminescence. When possible, the extended solid-state structure of the LMOF is determined by X-ray crystallography. The excitation and emission spectra are reported for the transition metal complex in solution and solid state and compared to those obtained for the LMOF. Insights gained will be applied in the development of sensors for analyte-specific sensors of environmental or clinical interest.

Luminescent metal-organic frameworks containing metal complexes of ruthenium, osmium, or rhenium: Framework structure and photophysical properties

251st National Meeting (2016)

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