Graduate Thesis Or Dissertation
 

Synthesis and Characterization of Novel Metal-Oxo Clusters as the Building Blocks in Nature and Synthesis

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https://ir.library.oregonstate.edu/concern/graduate_thesis_or_dissertations/sx61dt66j

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  • Metal-oxo clusters can be described as soluble pieces of metal-oxide frameworks. Metal-oxo clusters are also the building blocks for the Metal-Organic Frameworks (MOFs) and coordination polymers. A better knowledge of metal-oxo clusters helps fundamentally understand geosciences, molecular engineering, catalysis, single-molecule magnetism, and MOFs for synthesis, design, and modification of these materials. This dissertation aims to demonstrate the synthesis of different metal-oxo clusters and monitor the reaction pathway with analytical techniques. We control the reactions to isolate the desired metal-oxo clusters and study their aggregation the form metal oxides, metal-oxo networks, and coordination polymers. Based on the nature of metal ions, the metal-oxo cluster forms as negative or positive charge molecules named polyoxoanion and polyoxocation. There have been a lot of studies on metal-oxo clusters; however, investigating all types of metal-oxo clusters and their potential for extended coordination structure hasn't been done best of our knowledge. Herein we study Nb-oxo clusters as an example of negatively charged metal-oxo clusters and use carbonate ligand to extend the Nb10-CO3 structure to a two-dimensional coordination network. In a further study on Nb chemistry, we replaced some Nb-oxo unites with lanthanides to explore these structures. This study isolated five structures with Nb-based polyoxometalate coordinated with carbonate ligands.
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  • Intellectual Property (patent, etc.)
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  • 2022-05-31 to 2022-12-31

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