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Hypsochromically-shifted Emission of Metal-organic Frameworks Generated through Post-synthetic Ligand Reduction |
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| Authors: | Kyle T Smith Kye Hunter Nan-Chieh Chiu Hao Zhuang Peemapat Jumrusprasert William F Stickle Jeffrey A Reimer Tim J Zuehlsdorff Kyriakos C Stylianou |
| Institution: | 1. Materials Discovery Laboratory (MaD Lab), Oregon State University, Corvallis, OR 97331 USA
Department of Chemistry, Oregon State University, Corvallis, OR97331 USA;2. Department of Chemistry, Oregon State University, Corvallis, OR97331 USA;3. Department of Chemical and Biomolecular Engineering, University of California, Berkeley, CA 94720 USA;4. Materials Discovery Laboratory (MaD Lab), Oregon State University, Corvallis, OR 97331 USA Chulalongkorn University, Bangkok, 10330 Thailand;5. Hewlett-Packard Co., 1000 NE Circle Blvd., Corvallis, OR 97330 USA;6. Materials Discovery Laboratory (MaD Lab), Oregon State University, Corvallis, OR 97331 USA |
| Abstract: | Luminescent materials with tunable emission are becoming increasingly desirable as we move towards needing efficient Light Emitting Diodes (LEDs) for displays. Key to developing better displays is the advancement of strategies for rationally designing emissive materials that are tunable and efficient. We report a series of emissive metal-organic frameworks (MOFs) generated using BUT-10 (BUT: Beijing University of Technology) that emits green light with λmax at 525 nm. Post-synthetic reduction of the ketone on the fluorenone ligand in BUT-10 generates new materials, BUT-10-M and BUT-10-R. The emission for BUT-10-R is hypsochromically-shifted by 113 nm. Multivariate BUT-10-M structures demonstrate emission with two maxima corresponding to the emission of both fluorenol and fluorenone moieties present in their structures. Our study represents a novel post-synthetic ligand reduction strategy for producing emissive MOFs with tunable emission ranging from green, white-blue to deep blue. |
| Keywords: | Blue-Light Dual-Emission Hypsochromic Multivariate-MOFs Post-Synthetic Modification |