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Coordination Chemistry Lab
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The lab creates new properties and functions from metal ions and organic molecules through coordination chemistry.
AboutAbout the lab
Toward a new era of coordination chemistry.
The Coordination Chemistry Lab studies how to deliberately create targeted properties and functions using materials that combine organic molecules and metal ions.
The lab believes that in coordination polymers, in which metal ions are linked by organic ligands, cooperativity among the ions can produce functions that single ions cannot achieve.
Its work spans a wide range, from molecular design and organic synthesis to property evaluation, theoretical calculation, and device applications.
On the lab's website, it is introduced under the name "Sakamoto Laboratory" (Sakamoto-ken).
Key terms
- Coordination polymer
- A material in which metal ions are linked by organic ligands to form a connected, extended structure.
- Cooperativity
- An effect that acts between the charges and spins of metal ions, somewhat like group psychology. It gives rise to functions that individual ions do not have.
- Molecular nanosheet
- An extremely thin, sheet-like material made by linking organic molecules and metal ions in two dimensions.
NewsLab news
A PhD student won the Oral Presentation Award and the Poster Award at the Summer School of the Young Coordination Chemists' Association 2026
Professor Sakamoto won the Academic Award of the Japan Society of Coordination Chemistry
Undergraduate and master's students won the Young Researcher Encouragement Award at the 9th Annual Meeting of Molecular Robotics
A master's student won the Best Poster Award at CSJ Festa 2025
A PhD student won the Best Poster Award at MSSp2025
ResearchResearch themes
Coordination chemistry is a field that excels at deliberately creating targeted properties and functions, by taking advantage of the design freedom of organic ligands and the diverse electronic states of metal ions. Centered on coordination polymers, in which metal ions are linked by organic ligands, the lab conducts broad research from molecular design and synthesis to evaluation and applications.
*Illustrative imageMolecular nanosheets and nanowires
The lab studies low-dimensional coordination materials, such as two-dimensional molecular nanosheets and molecular nanowires, which are one-dimensional single molecular chains. It builds graphene analogs such as graphdiyne at liquid-liquid interfaces, and has also succeeded in synthesizing nanowires about 1 nm in thickness.
*Illustrative imageDevelopment of hydrogen storage materials
Hydrogen is expected to be a next-generation energy carrier, but storing it at room temperature and atmospheric pressure is difficult. Materials that reversibly adsorb and release hydrogen under mild conditions are needed, and the lab develops new hydrogen storage materials based on coordination chemistry.
*Illustrative imageDevelopment of porous molecular conductors
The lab combines porous coordination polymers (MOFs), which have molecular-sized pores, with molecular conductors to develop a new class of materials called porous molecular conductors. By making use of three elements, π radicals, metal complexes, and nanopores, it aims to achieve new properties and functions.
*Illustrative imageLight-driven nanomaterials and molecular machines
The lab develops molecular wires that transmit light energy and molecular machines driven by light. Its achievements include elucidating light energy transfer at the nanoscale, photoelectric conversion using metal complexes, and inventing a new 3D display mechanism that uses molecular machines.
MembersFaculty
The members of the Coordination Chemistry Lab are faculty members, doctoral, master's, and undergraduate students, and a secretary; the faculty also include an Assistant Professor at the Frontier Research Institute for Interdisciplinary Sciences (FRIS).As of 2026
- ProfessorRyota Sakamoto
- Associate ProfessorShinya Takaishi
- Assistant ProfessorRyojun Toyoda
- Assistant ProfessorTomoki Tateishi
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Report an errorAbout the images
The top and research theme images are illustrative and were not taken at the lab. They are cropped from Wikimedia Commons images. Cropped CC BY-SA images are provided under the same CC BY-SA license as the original (version shown on each line).
- Top image: “MOF-5 Crystal Structure” Axs154 / CC BY-SA 4.0 (cropped)
- Molecular nanosheets and nanowires: “Nanowire; Sensor ( )” National Institute of Standards and Technology / Public domain (cropped)
- Development of hydrogen storage materials: “Toyota hydrogen fuel cell at the 2014 New York International Auto Show ( )” Joseph Brent / CC BY-SA 2.0 (cropped)
- Development of porous molecular conductors: “Structure of ZIF-8(H)” François-Xavier Coudert / CC BY 4.0 (cropped)
- Light-driven nanomaterials and molecular machines: “Silicon heterojunction solar cell” Radiotrefoil / CC BY-SA 4.0 (cropped)
- Related lab (Organic Chemistry II Lab): “Selfassembly Organic Semiconductor Trixler LMU” Frank Trixler; adapted from LMU/CeNS: Organic Semiconductor Nanostructures / CC BY-SA 3.0 (cropped)
- Related lab (Inorganic Chemistry Lab): “Laboratory Glassware (Medilab Exports Consortium)” PhotoCave / CC BY-SA 4.0 (cropped)
- Related lab (Interdisciplinary Fundamental Chemistry Lab): “Round bottom flask in salem” Dhivyabsk / CC BY-SA 4.0 (cropped)
- Related lab (Synthetic and Structural Organic Chemistry Lab): “Laboratory-glas hg” Hannes Grobe / CC BY-SA 4.0 (cropped)
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