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Organic Synthetic Chemistry Lab (Hatakeyama Lab)
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An organic synthesis lab that designs light-emitting molecules using boron and nitrogen.
AboutAbout the lab
Swapping some carbon atoms to create new light-emitting materials.
The Synthetic Organic Chemistry Lab (Hatakeyama Lab) studies the precise synthesis of heteronanocarbons, in which specific carbon atoms of nanocarbons are replaced with heteroatoms such as boron, nitrogen, and phosphorus, and their applications in materials chemistry.
Theoretical calculations predict that heteronanocarbons have unusual properties. However, with conventional synthetic methods it has been difficult to control the positions and number of heteroatoms, and much of the research has remained superficial, relying on mixtures.
Through precise synthesis and applications, the lab aims to deepen this field as an academic discipline.
Key terms
- Nanocarbon
- Nanoscale materials made of carbon, such as graphene and carbon nanotubes
- π-conjugated system
- The part of a molecule where double bonds and similar bonds are linked in a chain, allowing electrons to move over a wide range
- Multiple-resonance effect
- An effect in which placing atoms such as boron and nitrogen in an alternating arrangement makes the electron distribution in a molecule shift alternately to one side and the other
- OLED
- A technology used in displays and other devices, based on the phenomenon in which organic molecules emit light when electricity passes through them
NewsLab news
A student's paper was published in Angew. Chem. Int. Ed.
A doctoral student won the Best Poster Award at KJF-COMEP 2026
A student's paper was published in Chemical Science
A doctoral student won the Student Presentation Encouragement Award at the 42nd Meeting of the Organic EL Symposium
A paper was published in Adv. Opt. Mater.
ResearchResearch themes
The lab studies the precise synthesis of heteronanocarbons and their applications in materials chemistry.
*Illustrative imageTandem Hetero-Friedel–Crafts Reaction
The lab has established the "tandem hetero-Friedel–Crafts reaction," which assembles polycyclic frameworks containing heteroatoms at ring junctions in one pot. It has used this reaction to achieve the one-shot synthesis of heteronanographenes and heterohelicenes with large π-conjugated systems.
*Illustrative imageNarrowband Emission via the Multiple-Resonance Effect
DABNA, which suppresses the broadening of the emission spectrum through the multiple-resonance effect, is widely used in commercial OLED displays. The lab has also developed ν-DABNA, which shows even narrower emission.
MembersFaculty
The lab's members consist of faculty, a secretary, postdoctoral researchers, and students.As of 2026
- ProfessorTakuji Hatakeyama
- Associate ProfessorMasashi Mamada
- Assistant ProfessorMasahiro Hayakawa
- Program-Specific Assistant ProfessorJunki Ochi
- Program-Specific Assistant ProfessorHao Jiping
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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: “OLED Displays” Samsung Galaxy Note 10 / CC BY-SA 4.0 (cropped)
- Tandem Hetero-Friedel–Crafts Reaction: “Friedel-Crafts reaction” Calvero / CC BY-SA 3.0 (cropped)
- Narrowband Emission via the Multiple-Resonance Effect: “OLED transparent” Thibault GUILLAUMONT / CC BY-SA 4.0 (cropped)
- Related lab (Organic Chemistry Lab (Yorimitsu Lab)): “Te-flon distillation condensation device and Te-flon decompression distillation collection device” Bing-lab / CC BY-SA 4.0 (cropped)
- Related lab (Applied Mathematics (Topological Data Analysis) Lab (Yasuaki Hiraoka)): “Persistence Diagram” Rrrlw / CC BY-SA 4.0 (cropped)
- Related lab (Organic Molecular Assembly Function Lab (Matsunaga Lab)): “Ruthenium Catalyst” Crys83 / CC BY-SA 4.0 (cropped)
- Related lab (Inorganic Materials Chemistry Lab): “General structure of Metal-organic frameworks” Russo V, Hmoudah M, Broccoli F, Iesce MR, Jung O-S and Di Serio M (2020) / CC BY 4.0 (cropped)
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