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Femtosecond dynamics of hydrogen elimination: benzene formation from cyclohexadiene

De Feyter, Steven and Diau, Eric W.-G. and Zewail, Ahmed H. (2000) Femtosecond dynamics of hydrogen elimination: benzene formation from cyclohexadiene. Physical Chemistry Chemical Physics, 2 (4). pp. 877-883. ISSN 1463-9076. http://resolver.caltech.edu/CaltechAUTHORS:FEYpccp00

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Abstract

Using femtosecond-resolved mass spectrometry in a molecular beam, we report real-time study of the hydrogen elimination reaction of 1,4-cyclohexadiene. The experimental observation of the ultrafast stepwise H-elimination elucidates the reaction dynamics and mechanism. With density-functional theory (ground-state) calculations, the nature of the reaction (multiple) pathways is examined. With the help of recent conical-intersection calculations, the excited-state and ground-state pathways are correlated. From these experimental and theoretical results we provide a unifying picture of the thermochemistry, photochemistry and the stereochemistry observed in the condensed phase.


Item Type:Article
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http://dx.doi.org/10.1039/a907979cDOIArticle
http://pubs.rsc.org/en/Content/ArticleLanding/2000/CP/a907979cPublisherArticle
Additional Information:© Royal Society of Chemistry 2000; © The Owner Societies 2000. Received 4th October 1999, Accepted 17th January 2000, Published on the Web 7th February 2000. This work was supported by the National Science Foundation, the Office of Naval Research, and the Air Force Office of Scientific Research. We thank Professor K. N. Houk and Dr Sarah Wilsey for many helpful correspondences. SDF, a postdoctoral fellow of the Fund for Scientific Research-Flanders, acknowledges a Fulbright scholarship and financial support by the Katholieke Universiteit Leuven and by Caltech.
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NSFUNSPECIFIED
Office of Naval Research (ONR)UNSPECIFIED
Air Force Office of Scientific Research (AFOSR)UNSPECIFIED
Fonds Wetenschappelijk Onderzoek - Vlaanderen (FWO)UNSPECIFIED
Fulbright FoundationUNSPECIFIED
Katholieke Universiteit LeuvenUNSPECIFIED
CaltechUNSPECIFIED
Record Number:CaltechAUTHORS:FEYpccp00
Persistent URL:http://resolver.caltech.edu/CaltechAUTHORS:FEYpccp00
Alternative URL:http://dx.doi.org/10.1039/a907979c
Official Citation:Femtosecond dynamics of hydrogen elimination: benzene formation from cyclohexadiene Steven De Feyter, Eric W.-G. Diaua and Ahmed H. Zewail Phys. Chem. Chem. Phys., 2000,2, 877-883 DOI: 10.1039/A907979C
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:3518
Collection:CaltechAUTHORS
Deposited By: Archive Administrator
Deposited On:12 Jun 2006
Last Modified:12 Aug 2016 20:04

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