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Research Highlights

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Femtochemistry

Femtobiology

Femtochemistry has been widely developed and utilized in various research fields. The now-established techniques of femtochemistry, which encompass spectroscopy, mass spectrometry, and photoelectron methods, continue to reveal the atomic-scale dynamics of the chemical bond, especially the atomic motions of elementary chemical reactions.

Our current interest focuses on understanding of complex systems and here we highlight some areas of study: mesoscopic electron solvation and ultrafast dynamics of model biological chromophores (see abstracts below). An overview of the field up to the year 2000 can be found in the article Femtochemistry: Atomic-Scale Dynamics of the Chemical Bond Using Ultrafast Lasers, A. H. Zewail, Angew. Chem., Int. Ed. Engl. 2000, 39, 2586-2631 [Web link], originally published in Les Prix Nobel: The Nobel Prizes 1999, ed. T. Frängsmyr, Almqvist&Wiksell, Stockholm, 2000, p. 110 [Web link], reproduced in Nobel Lectures, Chemistry 1996-2000, ed. I. Grenthe, World Scientific, Singapore, 2003, p. 274 [Web link], and in a series of publications from international conferences which are held biannually since 1993.

Selected Publications

Dynamics of electrons in ammonia cages: The discovery system of solvation, I-R. Lee, W. Lee, A. H. Zewail, Chem. Phys. Chem. 2008, 9, 83-88.
[Web link] [Abstract] [Top of page]



Ultrafast light-induced response of photoactive yellow protein chromophore analogues, A. Espagne, D. H. Paik, P. Changenet-Barret, P. Plaza, M. M. Martin, A. H. Zewail, Photochem. Photobiol. Sci. 2007, 6, 780-787.
[Web link] [Abstract] [Top of page]



Double proton transfer dynamics of model DNA base pairs in the condensed phase, O.-H. Kwon, A. H. Zewail, Proc. Natl. Acad. Sci. USA 2007, 104, 8703-8708.
[Web link] [Abstract] [Top of page]



Primary steps of the photoactive yellow protein: Isolated chromophore dynamics and protein directed function, I-R. Lee, W. Lee, A. H. Zewail, Proc. Natl. Acad. Sci. USA 2006, 103, 258-262.
[Web link] [Abstract] [Top of page]



Dynamics of clusters: From elementary to biological structures, P.-Y. Cheng, J. S. Baskin, A. H. Zewail, Proc. Natl. Acad. Sci. USA 2006, 103, 10570-10576.
[Web link] [Abstract] [Top of page]



Electrons in finite-sized water cavities: Hydration dynamics observed in real time, D. H. Paik, I-R. Lee, D.-S. Yang, J. S. Baskin, A. H. Zewail, Science 2004, 306, 672-675.
[Web link] [Abstract] [Top of page]