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Ultrafast Electron Diffraction: Structural Dynamics of the Elimination Reaction of Acetylacetone

Xu, Shoujun and Park, Sang Tae and Feenstra, Jonathan S. and Srinivasan, Ramesh and Zewail, Ahmed H. (2004) Ultrafast Electron Diffraction: Structural Dynamics of the Elimination Reaction of Acetylacetone. Journal of Physical Chemistry A, 108 (32). pp. 6650-6655. ISSN 1089-5639.

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Ultrafast electron diffraction is reported for the elimination reaction of acetylacetone. For this multipath reaction, upon 266 nm excitation, it is revealed that the major reaction channel is fragmentation from the β carbon, producing OH and 3-penten-2-on-4-yl radicals, with a time constant of 247 ± 34 ps. We determine the structures involved and the changes in bond lengths. These structure-dynamics correlations in different states provide a mechanistic description of the complex reaction landscape.

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Additional Information:© 2004 American Chemical Society. Received: May 19, 2004. Publication Date (Web): July 17, 2004. This work was supported by the National Science Foundation and in part by the Air Force Office of Scientific Research. S.T.P. gratefully acknowledges the partial support provided by the Post-doctoral Fellowship Program of the Korean Science & Engineering Foundation (KOSEF).
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Air Force Office of Scientific Research (AFOSR)UNSPECIFIED
Korean Science and Engineering FoundationUNSPECIFIED
Issue or Number:32
Record Number:CaltechAUTHORS:20160817-092916390
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Official Citation:Ultrafast Electron Diffraction:  Structural Dynamics of the Elimination Reaction of Acetylacetone Shoujun Xu, Sang Tae Park, Jonathan S. Feenstra, Ramesh Srinivasan, and Ahmed H. Zewail The Journal of Physical Chemistry A 2004 108 (32), 6650-6655 DOI: 10.1021/jp0403689
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:69694
Deposited By: Ruth Sustaita
Deposited On:17 Aug 2016 18:27
Last Modified:03 Oct 2019 10:24

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