Centers & Labs

RIKEN Center for Emergent Matter Science

Materials Characterization Support Unit

Unit Leader: Daisuke Hashizume (D.Sci.)
Daisuke  Hashizume(D.Sci.)

Our unit provides research support by means of X-ray crystal structure analysis, electron microscopy, and elemental analysis. In addition to supporting on the individual method, we give multifaceted research support by combining these methods. To give analyses of the highest level quality to researchers, we always update our knowledge and make training in our skills. We make collaboration with researchers, not only we perform merely routine works, to achieve purposes of their research and to provide new insights on the research through discussion based on the results. We also challenge to develop unexplored measurement methods aiming at more advanced and sophisticated analysis.

Main Research Field


Related Research Fields

Complex systems / Interdisciplinary science and engineering / Mathematical and physical sciences / Engineering


  • Structure analysis
  • X-ray diffraction
  • Electron microscope
  • Chemical analysis
  • Structure analysis of device

Selected Publications

  1. Matsuhisa, N., Inoue, D., Zalar, P., Jin, H., Matsuba, Y., Itoh, A., Yokota, T. Hashizume, D., and Someya, T.:
    "Printable elastic conductors by in situ formation of silver nanoparticles from silver flakes"
    Nat. Mater., 16, 834 (2017).
  2. Sohtome, Y., Nakamura, G., Muranaka, A., Hashizume, D., Lectard, S., Tsuchimoto, T., Uchiyama, M., and Sodeoka, M.:
    "Naked d-orbital in a centrochiral Ni(II) complex as a catalyst for asymmetric [3+2] cycloaddition"
    Nat. Commun., 8, 14875 (2017).
  3. Qin, F., Shi, W., Ideue, T., Yoshida, M., Zak, A., Tenne, R., Kikitsu, T., Inoue, D., Hashizume, D., and Iwasa, Y.:
    "Superconductivity in a chiral nanotube"
    Nat. Commun., 8, 14465 (2017).
  4. Troadec, T., Wasano, T., Lenk, R., Baceiredo, A., Saffon-Merceron, N., Hashizume, D., Saito, Y., Nakata, N., Branchadell, V., and Kato, T.:
    "Donor-Stabilized Silylene/Phosphine-Supported Carbon(0) Center with High Electron Density"
    Angew. Chem. Int. Ed., 56, 6891 (2017).
  5. Tanaka, N., Shoji, Y., Hashizume, D., Sugimoto, M., and Fukushima, T.:
    "Formation of an Isolable Divinylborinium Ion through Twofold 1,2-Carboboration between a Diarylborinium Ion and Diphenylacetylene"
    Angew. Chem. Int. Ed., 56, 5312 (2017).
  6. Rosas-Sanchez, A., Alvarado-Beltran, I., Baceiredo, A., Hashizume, D., Saffon-Merceron, N., Branchadell, V., and Kato, T.:
    "The Lightest Element Phosphoranylidene: NHC-Supported Cyclic Borylidene-Phosphorane with Significant B=P Character"
    Angew. Chem. Int. Ed., 56, 4814 (2017).
  7. Bartlett, S. L., Sohtome, Y., Hashizume, D., White, P. S., Sawamura, M., Johnson, J. S., and Sodeoka, M.:
    "Catalytic Enantioselective [3 + 2] Cycloaddition of α-Keto Ester Enolates and Nitrile Oxides"
    J. Am. Chem. Soc., 139, 8661 (2017).
  8. Hashizume, D.:
    "Experimental Observation of the Nature of Weak Chemical Bonds in Labile Compounds"
    Adv. Mater., 29, 1605175 (2017).
  9. Sakai, H., Ikeura, K., Bahramy, M. S., Ogawa, N., Hashizume, D., Fujioka, J., Tokura, Y., and Ishiwata, S.:
    "Critical enhancement of thermopower in a chemically tuned polar semimetal MoTe2"
    Sci. Adv., 2, e1601378 (2016).
  10. Gau, D., Nougue, R., Saffon-Merceron, N., Baceiredo, A., De Cozar, A., Cossio, F. P., Hashizume, D., and Kato, T.:
    "Donor-Stabilized 1,3-Disila-2,4-diazacyclobutadiene with a Nonbonded Si⋅⋅⋅Si Distance Compressed to a Si=Si Double Bond Length"
    Angew. Chem. Int. Ed., 55, 14673 (2016).

Lab Members

Principal Investigator

Daisuke Hashizume
Unit Leader

Core Members

Keiko Suzuki
Senior Technical Scientist
Daishi Inoue
Technical Scientist
Chieko Kariya
Special Temporary Employee
Manabu Hoshino
Visiting Scientist
Jooyeon Ha
International Program Associate
Tomoka Kikitsu
Technical Staff I
Yoshio Maebashi
Technical Staff I

Contact information

2-1 Hirosawa
Wako, Saitama
351-0198 Japan

Email: hashi [at]

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