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Hashimoto Lab.
Inorganic Chemistry
Department of Chemistry, Graduate School of Science, Tohoku University
RESEARCH
Metal complexes based on ubiquitous elements
①
Synthesis and structure and reactivity elucidation of transition metals-main group elements (silicon, germanium, boron, aluminum, etc.) multiple bond complexes with ubiquitous elements.
1) For W≡Ge: J. Organomet. Chem. 2017, 848, 89-94, Chem. Commun. 2013, 49, 4232-4234, Angew. Chem. Int. Ed. 2012, 51, 2930-2933.; 2) For W≡Si: Organometallics 2016, 35, 921-924, Organometallics 2016, 35, 3444-3447, Chem. Eur. J. 2019, 25, 3795-3798.; 3) For Mo≡Ge: Organometallics 2020, 39, 4350-4361.; 4) For Cr≡Ge: Organometallics 2023, in press.
②
Molecular design of active transition metal complexes using chelate ligands and their induced reactions and catalysis
1) Organometellics 2022, 41, 2612–2621. 2) Dalton Trans. 2022, 51, 9983–9987.3) Organometallics, 2021, 40, 3113-3123.4) Chem. Lett. 2020, 49, 1431-1434.
③
Synthesis of metal complexes of lithium-ion endohedral fullerene and elucidation of their electronic properties
1) Organometallics, 2014, 33, 608-611. 2) RSC Advances, 2012, 2, 10624-10631.3) Angew. Chem. Int. Ed., 2012, 51, 3377-3381.4) Nature Chem., 2010, 2, 678-683.
④
Molecular design of multinucleated clusters (composite anion heteropolyacids) and elucidation of their properties
◼️ Overview of Research
Molecular metal compounds, which contain transition-metals as their centers, so called “metal complexes,” display diverse properties depending on their central metals, supporting ligands, bonding situation, and geometries. We are studying about 1) metal complexes featuring multiple bonds between transition-metals and heavier main group elements (e.g. Group 13, 14, 15 elements), 2) metal complexes supported by multi-dentate chelate ligands, 3) polyoxometalates, and 3) metal complexes coordinated by Li+ ion encapsulated C60 fullerene, as main targets. We are trying to synthesize metal complexes having new types of bonds and structures, and clarify their properties, reactivities, and electronic properties. Through these researches, we are aiming at finding new metal complexes that act as high-performance catalysts and also new functional compounds that show unprecedented electronic properties.
◼️ Research Subjects
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