Department

Life and Coordination-Complex Molecular Science, Division of Functional Coordination Chemistry

Biography

2005 B.S. The University of Tokyo
2007 M.S. The University of Tokyo
2009 Ph.D. The University of Tokyo
2009 Assistant Professor, Nagoya University
2013 Designated Associate Professor, Nagoya University (until 2020)
2013 Group Leader and Project Coordinator, JST ERATO Itami Molecular Nanocarbon Project (until 2020)
2020 Associate Professor, Institute for Molecular Science
        Associate Professor, The Graduate University for Advanced Studies

Main research themes

Design and synthesis of three-dimensional organic structures

π-conjugated molecules, molecular topology, 3D network polymer

Annual Review : PDF

Selected Publications

1. Crystalline 3D covalent organic frameworks with nbo topology
   Soshi Hirota, Haruki Sugiyama, Nao Hirata, Sachiko Nakano, Junichi Usuba, Yuh Hijikata, Ryotaro Matsuda, Takanori Nakane, Akihiro Kawamoto, Genji Kurisu, Yasutomo Segawa*
   Sci. Adv. 2026, 12, aeg6230.
2. Construction of Shape-Persistent All-sp2 Square Macrocycles via the Formation of Multiple Imine Bonds
   Takashi Harimoto,* Yasutomo Segawa*
   J. Am. Chem. Soc. 2026, 148, 22718–22725.
3. Synthesis, structure, and properties of twisted π-conjugated molecules featuring three-dimensional π-π interactions in solid states
   Mai Nagase, Ryu Yoshida, Sachiko Nakano, Takashi Hirose, Yasutomo Segawa*
   Chem. Commum. 2025, 61, 11187-11190.
4. Diverse tetracyanodihydrodipyrazinopyrazine clathrate crystals assembled from weak intermolecular interactions
   Kosuke Watanabe, Haruki Sugiyama, Yasutomo Segawa*
   CrystEngComm 2025, 27, 3552-3559.
5. Synthesis of fully fused tetrapyrazinoporphyrazine polymers bearing three-dimensional structures controlled by steric repulsion
   Kosuke Watanabe, Teruki Toya, Yuto Toyota, Yoichi Kobayashi, Junichi Usuba, Yuh Hijikata, Ryotaro Matsuda, Katsuyuki Nishimura, Haruki Sugiyama, Yasutomo Segawa*
   Chem. Commun. 2025, 61, 2822-2825.
6. Synthesis, structure, and properties of a bay-fluorinated triphenylene
   Ryu Yoshida, Haruki Sugiyama, Yasutomo Segawa*
   Chem. Lett. 2024, 53, upae048.
7. Synthesis of Polycyclic Arenes Composed of Four-, Five-, Six-, and Eight-Membered Rings via an Unexpected Four-Membered Ring Formation Reaction
   Soshi Hirota, Sachiko Nakano, Haruki Sugiyama, Yasutomo Segawa*
   Org. Lett. 2023, 25, 8062–8066.
8. Synthesis of penta- and hexa(3,4-thienylene): Size-dependent structural properties of cyclic oligothiophenes
   Mai Nagase, Sachiko Nakano, Yasutomo Segawa*
   Chem. Commun. 2023, 59, 11129-11132.
9. Nonplanar Aromatic Hydrocarbons: Design and Synthesis of Highly Strained Structures
   Yasutomo Segawa*
   Bull. Chem. Soc. Jpn. 2022, 95, 1600–1610.
10. Topological Molecular Nanocarbons: All-benzene Catenane and Trefoil Knot
    Yasutomo Segawa,* Motonobu Kuwayama, Yuh Hijikata, Masako Fushimi, Taishi Nishihara, Jenny Pirillo, Junya Shirasaki, Natsumi Kubota, Kenichiro Itami*
    Science 2019, 365, 272-276.
11. Synthesis of a Carbon Nanobelt
    Guillaume Povie, Yasutomo Segawa,* Taishi Nishihara, Yuhei Miyauchi, Kenichiro Itami*
    Science 2017, 356, 172–175.