Molecular Reaction Dynamics Research Team

Chemical reactions are driven by electrons, which are much lighter than nuclei in molecules. For understanding the origin of transformation of nuclear geometry and elucidating intricate and useful solvent effects on a chemical reaction, real-time observation of ultrafast changes of the electronic state in reacting molecules is essential. Thus, we carry out ultrafast photoelectron spectroscopy on chemical reactions in the gas and solution phases using femtosecond ultraviolet lasers, extreme ultraviolet and X-ray free electron lasers, and soft X-ray synchrotron radiation at SPring-8. Chemical reaction dynamics studies using state-of-the-art photon sources at RIKEN allow us unprecedented access to the ultrafast dynamics of electrons in chemical reactions.

Research Fields

Physics / Chemistry / Materials Sciences

Research Subjects

• Time-Resolved Spectroscopy using Free-Electron Lasers
• Photoelectron Imaging using Vacuum Ultraviolet Light Sources
• X-ray Photoelectron Spectroscopy of Gas and Liquids

Publications

1. Toshinori Suzuki
   "Visualization of chemical reaction dynamics: Toward understanding complex polyatomic reactions"
   Proceedings of Japan Academy Series B, 89(1), 1-15. (2013), doi: 10.2183/pjab.89.1
2. Toshinori Suzuki
   "Time-resolved photoelectron spectroscopy of non-adiabatic electronic dynamics in gas and liquid phases"
   International Reviews in Physical Chemistry, 31, 265-318 (2012), DOI:10.1080/0144235X.2012.699346
3. Peng Zuo, Takao Fuji, Takuya Horio, Shunsuke Adachi, and Toshinori Suzuki
   "Simultaneous generation of ultrashort pulses at 158 and 198 nm in a single filamentation cell by cascaded four-wave mixing in Ar"
   Appl. Phys. B 108, 815–819 (2012), DOI:10.1007/s00340-012-5146-y
4. Shunsuke Adachi, Takuya Horio, and Toshinori Suzuki
   "Generation of intense single-order harmonic pulse in the vacuum ultraviolet region using a deep ultraviolet driving laser"
   Optics Letters, 37, 2118-2120 (2012), DOI:10.1364/OL.37.002118
5. Takuya Horio, Huan Shen, Shunsuke Adachi, Toshinori Suzuki
   "Photoelectron spectra of solvated electrons in bulk water, methanol, and ethanol"
   Chem. Phys. Lett., 535, 12-16 (2012), DOI:10.1016/j.cplett.2012.03.051
6. Yoshi-Ichi Suzuki, Ying Tang and Toshinori Suzuki
   "Time-energy mapping of photoelectron angular distribution: application to photoionization stereodynamics of Nitric Oxide"
   Phys Chem Chem Phys, 14, 7309-7320 (2012), DOI:10.1039/C2CP40308K
7. Huan Shen, Shunsuke Adachi, Takuya Horio, and Toshinori Suzuki
   "Two-color deep-ultraviolet 40-fs pulses based on parametric amplification at 100 kHz"
   Optics Express, 19, 22637-22642 (2011), DOI:10.1364/OE.19.022637
8. Yoshi-ichi Suzuki, Takuya Horio, Takao Fuji, and Toshinori Suzuki
   "Time-resolved photoelectron imaging of S2 → S1 internal conversion in benzene and toluene"
   J. Chem. Phys. 134, 184313 (2011), DOI:10.1063/1.3586809
9. Yoshi-Ichi Suzuki, Huan Shen, Ying Tang, Naoya Kurahashi, Kentaro Sekiguchi, Tomoya Mizuno and Toshinori Suzuki
   "Isotope effect on ultrafast charge-transfer-to-solvent reaction from I- to water in aqueous NaI solution"
   Chemical Science, 2 (6), 1094-1102 (2011), DOI:10.1039/C0SC00650E
10. Kiyoshi Nishizawa, Naoya Kurahashi, Kentarou Sekiguchi, Tomoya Mizuno, Yoshihiro Ogi, Takuya Horio, Masaki Oura, Nobuhiro Kosugi, and Toshinori Suzuki
    "High-resolution soft X-Ray photoelectron spectroscopy of liquid water"
    Phys. Chem. Chem. Phys., 13 (2), 413-417 (2011), DOI: 10.1039/C0CP01636E