Affiliation:
1. Laboratory for Molecular Sciences, Arthur Amos Noyes Laboratory of Chemical Physics, California Institute of Technology, Pasadena, CA 91125, USA.
Abstract
Ultrafast electron diffraction (UED) has been developed to study transient structures in complex chemical reactions initiated with femtosecond laser pulses. This direct imaging of reactions was achieved using our third-generation apparatus equipped with an electron pulse (1.07 ± 0.27 picoseconds) source, a charge-coupled device camera, and a mass spectrometer. Two prototypical gas-phase reactions were studied: the nonconcerted elimination reaction of a haloethane, wherein the structure of the intermediate was determined, and the ring opening of a cyclic hydrocarbon containing no heavy atoms. These results demonstrate the vastly improved sensitivity, resolution, and versatility of UED for studying ultrafast structural dynamics in complex molecular systems.
Publisher
American Association for the Advancement of Science (AAAS)
Reference46 articles.
1. A. W. Castleman Jr. V. Sundström Eds. special issue on Ten Years of Femtochemistry J. Phys. Chem. A 102 4021 (1998).
2. V. Sundström Ed. Femtochemistry and Femtobiology: Ultrafast Reaction Dynamics at Atomic-Scale Resolution (World Scientific Singapore 1997).
3. A. H. Zewail in Les Prix Nobel (Almqvist & Wiksell Stockholm 1999) pp. 110–203 and references therein.
4. Tanimura Y., Yamashita K., Anfinrud P. A., Proc. Natl. Acad. Sci. U.S.A. 96, 8823 (1999).
5. and references therein.
Cited by
472 articles.
订阅此论文施引文献
订阅此论文施引文献,注册后可以免费订阅5篇论文的施引文献,订阅后可以查看论文全部施引文献