Chemistry: Student Scholarship & Creative Works
Student Research Paper
Kristi A. Kneas
Chemistry and Biochemistry
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: [Os(bpy)2(dcbpy)]Cl2, [Os(phen)2(dcphen)]Cl2, and [Os(CO)2Cl2(dcbpy)]. Systematic alterations were made to the ligands of the luminescent transition metal complexes in order to discern the impact on the photoluminescence of the complexes and the LMOFs. 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.
Hemler, Libby A., "Preparation and Characterization of Osmium Complexes For Use in Luminescent Metal Organic Frameworks" (2016). Chemistry: Student Scholarship & Creative Works. 4.