■mechanistic study laboratory


Izumi Iwakura
(Associate Professor)

Office: 23-715 Ext.: 3843


09/2005, Ph.D., Keio University

Research Field

Analysis of Reaction Mechanisms, Laser Chemistry.

Research Subjects

  • 1. Visualization of transition states with 5-fs visible laser pulses.
  • 2.Development of novel reactions induced by coherent molecular vibrational excitation.


Reactions induced by coherent molecular vibrational excitation in the electronic ground state just after photoexcitation are triggered by 5-fs visible laser pulses. The transition states in thermal reactions are observed by using reactions induced by coherent molecular vibration.

  • 1) I. Iwakura, A. Yabushita, Development of Novel Reactions Induced by Coherent Molecular Vibrational Excitation and Direct Observation of Molecular Structural Change during “Thermal” Reactions, Bulletin of the Chemical Society of Japan, 89, 296-307 (2016).
  • 2) S. Hashimoto, A. Yabushita, T. Kobayashi, I. Iwakura, Real-time measurements of ultrafast electronic dynamics in the disproportionation of [TCNQ]22– using a visible sub-10 fs pulse laser, Chemical Physics Letters, 650, 47-51 (2016).
  • 3) I. Iwakura, A. Yabushita, J. Liu, K. Okamura, S. Kezuka, and T. Kobayashi, “A new reaction mechanism of Claisen rearrangement induced by few-optical-cycle pulses: demonstration of non-thermal chemistry by femtosecond vibrational spectroscopy,” Pure and applied Chemistry, vol. 85, pp. 1991–2004 (2013).
  • 4) I. Iwakura, “The experimental visualization of molecular structural changes during both photochemical and thermal reactions by real-time vibrational spectroscopy,” Physical Chemistry Chemical Physics,” vol. 13, pp. 5546–5555 (2011).
  • 5) I. Iwakura, A. Yabushita, and T. Kobayashi, “Transition states and nonlinear excitations in chloroform observed with a sub-5 fs pulse laser,” Journal of the American Chemical Society, vol. 131, pp. 688–696 (2009).
Affiliated Academic Organizations

The Chemical Society of Japan, The Japanese Photochemistry Association, The Society of Japanese Women Scientists, The Society of Synthetic Organic Chemistry, Japan, The Society of Physical Organic Chemistry, Japan.