Soft-x-ray-induced ionization and fragmentation dynamics of Sc3N@C80 investigated using an ion-ion-coincidence momentum-imaging technique

Hui Xiong, Razib Obaid, Li Fang, Cédric Bomme, Nora G. Kling, Utuq Ablikim, Vladimir Petrovic, Chelsea E. Liekhus-Schmaltz, Heng Li, Rene C. Bilodeau, Thomas Wolf, Timur Osipov, Daniel Rolles, and Nora Berrah
Phys. Rev. A 96, 033408 – Published 13 September 2017

Abstract

The fragmentation dynamics of an endohedral fullerene, Sc3N@C80, after absorption of a soft-x-ray photon, has been studied with an ion-ion-coincidence momentum-imaging technique. Molecular inner-shell ionization at 406.5 eV, targeting the Sc (2p) shell of the encapsulated Sc3N moiety and the C (1s) shell of the C80 cage, leads to the cage fragmentation through evaporation of C2, emission of small molecular carbon ions (Cn+, n24), and release of Sc and Sc-containing ions associated with the carbon cage opening or fragmentation. The predominant charge states of Sc and Sc-containing ionic fragments are +1 despite an effective Sc valence of 2.4, indicating that charge transfer or redistribution plays an important role in the fragmentation of the encaged Sc3N. Sequential emission of two out of the three Sc atoms of the encaged moiety, via Coulomb explosion in the form of Sc+ or Sc-containing ions, is significant. We also find that the resonant excitation of the Sc (2p) shell electrons significantly increased the yield of the parent Sc3N@C80 and its fragment ions, partially attributed to the collision of the energetic Auger electrons from the Sc site with the carbon cage.

  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
  • Figure
1 More
  • Received 3 July 2017

DOI:https://doi.org/10.1103/PhysRevA.96.033408

©2017 American Physical Society

Physics Subject Headings (PhySH)

Atomic, Molecular & Optical

Authors & Affiliations

Hui Xiong1, Razib Obaid1, Li Fang2, Cédric Bomme3, Nora G. Kling1, Utuq Ablikim4, Vladimir Petrovic5, Chelsea E. Liekhus-Schmaltz5, Heng Li5, Rene C. Bilodeau1, Thomas Wolf5, Timur Osipov6, Daniel Rolles4, and Nora Berrah1

  • 1Physics Department, University of Connecticut, Storrs, Connecticut 06269, USA
  • 2Center for High Energy Density Science, University of Texas, Austin, Texas 78712, USA
  • 3Deutsches Elektronen-Synchrotron (DESY), 22607 Hamburg, Germany
  • 4James R. Macdonald Laboratory, Kansas State University, Manhattan, Kansas 66506, USA
  • 5Stanford PULSE Institute, SLAC National Accelerator Laboratory, Menlo Park, California 94025, USA
  • 6LCLS, National Accelerator Laboratory, Menlo Park, California 94025, USA

Article Text (Subscription Required)

Click to Expand

References (Subscription Required)

Click to Expand
Issue

Vol. 96, Iss. 3 — September 2017

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
×