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Shionoya Lab
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A coordination chemistry lab that designs how metal ions assemble at the level of a single atom.
AboutAbout the lab
Building metal complexes inspired by living organisms.
The Shionoya Lab studies the precise synthesis of supramolecular metal complexes inspired by living organisms, and the exploration of their functions.
The research keywords include supramolecular chemistry, coordination chemistry, bioinorganic chemistry, and organometallic chemistry.
Currently, the lab designs and synthesizes metal ion clusters with a single atom at the center, and investigates how their structures relate to their catalytic reactions and luminescence properties.
The lab is located in the Research Institute for Science and Technology, part of the Organization for Research Promotion at Tokyo University of Science.
Key terms
- Metal ion cluster
- A group of multiple metal ions held together by ligands. This lab works on clusters with a single atom, such as carbon, at the center.
- Chiral-at-Metal complex
- A complex in which the metal itself is the chiral center. The metal provides the site for asymmetric reactions and brings about chiral properties.
- Etching method
- A synthetic method that removes metal atoms from a cluster, reducing the number of metal atoms one atom at a time.
NewsLab news
View More ↗ResearchResearch themes
The Shionoya Lab precisely designs and synthesizes supramolecular metal complexes inspired by living organisms, and explores their structures and functions. At Tokyo University of Science, the lab designs metal ion clusters with a single atom at the center and works on exploring their catalytic functions.
Metal ion clusters centered on a single atom
For metal ion clusters made of metal ions and ligands with a single atom at the center, the lab aims to establish design principles and assembly methods, and to develop catalytic reactions that make use of their three-dimensional structures and electronic states. Starting from gold(I) clusters centered on carbon, the lab developed an etching method that reduces the number of metal atoms one atom at a time, and found that this produces chiral structures, asymmetric induction, and strong phosphorescence in the long-wavelength region.
Metal-centered chiral complexes and asymmetric catalysis
For Chiral-at-Metal complexes, in which the metal itself is the chiral center, the lab developed methods to induce asymmetry at the metal center through molecular design and control of the substitution lability of the ligands, and studied their application to asymmetric catalytic reactions.
MembersFaculty
Members of the Shionoya Lab consist of faculty, researchers, master's and undergraduate students, and a secretary.As of 2026
- ProfessorMitsuhiko Shionoya
- LecturerHitoshi Ube
- Assistant ProfessorXiaoli Pei
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