A Caltech Library Service

Dynamics of the Dissociating Uracil Anion Following Resonant Electron Attachment

Kawarai, Y. and Weber, T. and Azuma, Y. and Winstead, C. and McKoy, V. and Belkacem, A. and Slaughter, D. S. (2014) Dynamics of the Dissociating Uracil Anion Following Resonant Electron Attachment. Journal of Physical Chemistry Letters, 5 (21). pp. 3854-3858. ISSN 1948-7185.

PDF (Supporting Information) - Supplemental Material
See Usage Policy.


Use this Persistent URL to link to this item:


We report a combined experimental and theoretical investigation of dissociative electron attachment (DEA) to the nucleobase uracil. Using ion momentum imaging experiments employing a DEA reaction microscope we have measured 3-dimensional momentum distributions of specific anionic fragments following DEA to uracil by 6 eV electrons. From the measured anion fragment kinetic energy we determine the possible dissociation pathways and the total kinetic energy release. We employ electronic structure and electron scattering calculations to determine the probability for electron attachment in the molecular frame. Combining these calculations with the imaging measurements, we reveal several key features of the coupled electronic and nuclear dynamics of DEA.

Item Type:Article
Related URLs:
URLURL TypeDescription Information
Additional Information:© 2014 American Chemical Society. Received: September 8, 2014; accepted: October 17, 2014; published: October 17, 2014. This material is based upon work supported by the U.S. Department of Energy, Office of Science, Office of Basic Energy Sciences, and by the Division of Chemical Sciences, Geosciences, and Biosciences under Contracts No. DE-AC02-05CH11231 (LBNL) and DE-FG02-97ER14814 (California Institute of Technology). The work of V.M. and C.W. made use of the Jet Propulsion Laboratory’s Supercomputing and Visualization Facility. Y.A. acknowledges the Japan Society for the Promotion of Science for support through Grants-in-Aid for Scientific Research (No. 23600009).
Funding AgencyGrant Number
Department of Energy (DOE)DE-AC02-05CH11231
Department of Energy (DOE)DE-FG02-97ER14814
Japan Society for the Promotion of Science (JSPS)23600009
Issue or Number:21
Record Number:CaltechAUTHORS:20141211-090238246
Persistent URL:
Official Citation:Dynamics of the Dissociating Uracil Anion Following Resonant Electron Attachment Y. Kawarai, Th. Weber, Y. Azuma, C. Winstead, V. McKoy, A. Belkacem, and D. S. Slaughter The Journal of Physical Chemistry Letters 2014 5 (21), 3854-3858
Usage Policy:No commercial reproduction, distribution, display or performance rights in this work are provided.
ID Code:52579
Deposited By: Jason Perez
Deposited On:11 Dec 2014 23:45
Last Modified:03 Oct 2019 07:43

Repository Staff Only: item control page