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X-ray imaging of chemically active valence electrons during a pericyclic reaction

Title: X-ray imaging of chemically active valence electrons during a pericyclic reaction
Authors: Bredtmann, T
Ivanov, M
Dixit, G
Item Type: Journal Article
Abstract: Time-resolved imaging of chemically active valence electron densities is a long-sought goal, as these electrons dictate the course of chemical reactions. However, X-ray scattering is always dominated by the core and inert valence electrons, making time-resolved X-ray imaging of chemically active valence electron densities extremely challenging. Here we demonstrate an effective and robust method, which emphasizes the information encoded in weakly scattered photons, to image chemically active valence electron densities. The degenerate Cope rearrangement of semibullvalene, a pericyclic reaction, is used as an example to visually illustrate our approach. Our work also provides experimental access to the long-standing problem of synchronous versus asynchronous bond formation and breaking during pericyclic reactions.
Issue Date: 26-Nov-2014
Date of Acceptance: 16-Oct-2014
URI: http://hdl.handle.net/10044/1/40466
DOI: http://dx.doi.org/10.1038/ncomms6589
ISSN: 2041-1723
Publisher: Nature Publishing Group
Journal / Book Title: Nature Communications
Volume: 5
Copyright Statement: This work is licensed under a Creative Commons Attribution 4.0 International License. The images or other third party material in this article are included in the article’s Creative Commons license, unless indicated otherwise in the credit line; if the material is not included under the Creative Commons license, users will need to obtain permission from the license holder to reproduce the material. To view a copy of this license, visit http://creativecommons.org/licenses/by/4.0/
Sponsor/Funder: Engineering & Physical Science Research Council (EPSRC)
Funder's Grant Number: EP/I032517/1
Keywords: Science & Technology
Multidisciplinary Sciences
Science & Technology - Other Topics
COPE REARRANGEMENT
MULTIBOND REACTIONS
SEMIBULLVALENE
DIFFRACTION
DYNAMICS
LOCALIZATION
CRYSTALLOGRAPHY
PREDICTION
MOLECULE
MOTION
MD Multidisciplinary
Publication Status: Published
Article Number: 5589
Appears in Collections:Quantum Optics and Laser Science
Physics
Faculty of Natural Sciences



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