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Inorganic Reaction Chemistry Lab
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A lab exploring redox reactions of metal complexes and porphyrins.
AboutAbout the lab
Exploring the reactions of metal complexes, using biological phenomena as a model
The Inorganic Reaction Chemistry Lab studies redox reactions of metal complexes and porphyrins, using biological phenomena as a model.
It focuses in particular on proton-coupled electron transfer (PCET), a reaction in which protons and electrons move between molecules.
For porphyrins, the lab works on the formation of supramolecular assemblies and the development of their functions, based on saddle-shaped molecules with a curved structure.
The lab's website presents it under the name "Kojima Lab."
Key terms
- Proton-coupled electron transfer
- A reaction in which protons and electrons move between molecules, either in a concerted manner or stepwise. Abbreviated as PCET
- Porphyrin
- A heterocyclic compound with an 18π-electron system. In living organisms, it is found as an iron complex at the active center of hemoglobin and myoglobin
- Artificial photosynthesis
- Research on artificially carrying out reactions that convert light energy into chemical energy
ResearchResearch themes
The lab pursues a wide range of research centered on redox reactions of metal complexes and porphyrins, using biological phenomena as a model. Its research falls broadly into three themes: redox reactions in metal complexes, the chemistry of saddle-shaped porphyrins, and research on porphyrins with fused-ring structures (Associate Professor Ishizuka).
*Illustrative imageRedox Reactions in Metal Complexes
The lab investigates redox reactions of metal complexes. Topics include the oxidation of organic compounds by high-valent metal-oxo complexes, the mechanisms of hydrogen-transfer reactions, and artificial photosynthesis, which converts light energy into chemical energy.
*Illustrative imageSupramolecules and Functions of Saddle-Shaped Porphyrins
Porphyrins are usually planar, but the lab develops supramolecular assemblies and their functions based on saddle-shaped porphyrins with a curved structure. It also works on function development based on protonation, as well as catalytic reactions.
MembersFaculty
The Kojima Lab consists of faculty members, doctoral, master's, and undergraduate students, and secretaries.As of 2026
- ProfessorTakahiko Kojima
- Associate ProfessorTomoya Ishizuka
- Assistant ProfessorHiroaki Kotani
- Project Assistant ProfessorTuan-Anh Phan
VoicesStudent voices
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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: “Winkler Titration Prior Titration” Original uploader was Willwood at en.wikipedia / CC BY-SA 3.0 (cropped)
- Redox Reactions in Metal Complexes: “RustyChainEdit1” Marlith / CC BY-SA 3.0 (cropped)
- Supramolecules and Functions of Saddle-Shaped Porphyrins: “Prentice Hall Molecular Model Set for General Organic Chemistry 8139” Bin im Garten / CC BY-SA 3.0 (cropped)
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