Ion-momentum imaging of dissociative-electron-attachment dynamics in acetylene

M. Fogle, D. J. Haxton, A. L. Landers, A. E. Orel, and T. N. Rescigno
Phys. Rev. A 90, 042712 – Published 21 October 2014

Abstract

We present experimental results for dissociative electron attachment to acetylene near the 3 eV 2Πg resonance. In particular, we use an ion-momentum imaging technique to investigate the dissociation channel leading to C2H fragments. From our measured ion-momentum results we extract fragment kinetic energy and angular distributions. We directly observe a significant dissociation bending dynamic associated with the formation of the transitory negative ion. In modeling this bending dynamic with ab initio electronic structure and fixed-nuclei scattering calculations we obtain good agreement with the experiment.

  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Received 13 August 2014

DOI:https://doi.org/10.1103/PhysRevA.90.042712

©2014 American Physical Society

Authors & Affiliations

M. Fogle1, D. J. Haxton2, A. L. Landers1, A. E. Orel3, and T. N. Rescigno2

  • 1Department of Physics, Auburn University, Auburn, Alabama 36849, USA
  • 2Lawrence Berkeley National Laboratory, Chemical Sciences, Berkeley, California 94720, USA
  • 3Department of Chemical Engineering and Materials Science, University of California, Davis, California 95616, USA

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 90, Iss. 4 — October 2014

Reuse & Permissions
Access Options
CHORUS

Article Available via CHORUS

Download Accepted Manuscript
Author publication services for translation and copyediting assistance advertisement

Authorization Required


×
×

Images

×

Sign up to receive regular email alerts from Physical Review A

Log In

Cancel
×

Search


Article Lookup

Paste a citation or DOI

Enter a citation
×