Development of next-generation catalysts utilizing elemental properties!
Manufacturing (Saitama University Research Seed Collection 2025-27 p.41)
Keywords: typical element chemistry, organometallic chemistry, element properties, precision polymerization reactions, transition metal-free catalysts, chemical conversion of carbon dioxide.
The creation of "new chemical species" that do not exist in conventional contexts allows for the simultaneous elucidation of new properties such as bonding, structure, and reactivity, as well as the clarification of the new reactivity they confer. In particular, composite compounds that combine main group elements and transition metals generate unique "elemental characteristics" between the elements, enabling the creation of highly active catalysts and highly reactive chemical species. As examples of such "elemental characteristics," we have worked on (1) the development of precision olefin polymerization catalysts and (2) the synthesis of low-coordinate compounds of high-period group 14 elements (tetrelens). In (1), we achieved high activity that surpasses conventional catalysts and successfully produced polyolefins with controlled stereostructures. In (2), the synthesized tetrelens exhibited unique coordination behavior towards transition metals and were found to be usable as alternatives to rare transition metal catalysts. Currently, we are challenging the development of catalysts that enable the conversion reactions of carbon dioxide into useful chemical products using tetrelens.
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Norio Nakata, Professor Graduate School of Science and Technology, Department of Materials Science, Fundamental Materials Area 【Recent Research Themes】 ● Creating catalysts from sand! → Systematically synthesizing low-coordination chemical species of silicon and aluminum, which are abundantly found in the Earth's crust, and exploring their new catalytic functions. ● Overturning the image of carbon dioxide! → Aiming to effectively utilize carbon dioxide, an inexhaustible C1 source, and to construct an innovative catalytic system that does not use transition metals.
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【Appeal Points to the Industry】 ● Proficient in handling a diverse range of elements across the periodic table, capable of consistently executing tasks from ligand design to complex synthesis and even exploring catalytic functions. ● By utilizing "elemental properties," I can contribute to building a sustainable society through efforts such as precious metal alternatives, effective utilization of carbon dioxide, and the development of alternatives to PFAS. 【Examples of Practical Applications and Utilization】 ● Development of homogeneous catalysts aimed at the synthesis of stereospecific polyolefins. ● High-efficiency synthesis of olefin dimers that serve as precursors for jet fuel and lubricants. ● Synthesis and characterization of compounds with double bonds containing high-period group 14 elements. ● Hydrosilylation reactions of alkenes using low-catalyst silicon-platinum complexes.
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Synthesis and Properties of Low Coordination Compounds of High Period Group 14 Elements
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The Saitama University Open Innovation Center is a center that functions as a liaison office for industry-academia-government collaboration. It consists of three departments: the Industry-Academia-Government Collaboration Department, the Intellectual Property Department, and the Startup Support Department, each staffed with coordinators well-versed in various fields. The center's activities include solving technical challenges in companies, supporting the implementation of joint research, and conducting technology transfer aimed at introducing and utilizing Saitama University's intellectual property.