Time-dependent structural dynamics of cyclohexadiene probed by strong-field ionization

ORAL

Abstract

We present the results of a time-resolved UV-pump strong-field-ionization-NIR-probe experiment on a prototypical carbon ring molecule, cyclohexadiene (CHD). UV-photoabsorption propels CHD to an electronically excited state, which is coupled to the ground state by a series of conical intersections. Upon de-excitation, the molecule can either return to the initial geometry or isomerize into an open-ring hexatriene (HT) molecule. We discuss possible signatures of the electronic de-excitation and ring-opening in our experimental observables, which include coincident fragment ion yields, kinetic energies, and angular distributions obtained by a coincident ion momentum imaging measurement.

*This project is supported by the Chemical Science, Geosciences, and Bio-Science division, Office of Basic Energy Science, Office of Science, U.S. Department of Energy under Award # DE-FG02-86ER13491.

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Authors

  • K. Borne

    • Kansas State University

  • F. Ziaee

    • Kansas State University
    • J. R. Macdonald Laboratory, Department of Physics, Kansas State University, USA

  • Peyman Feizollah

    • Kansas State University
    • J. R. Macdonald Laboratory, Physics Department, Kansas State University, Manhattan, KS 66506 USA

  • Joseph Harrington

    • Kansas State University

  • B. Kaderiya

    • Kansas State University
    • J. R. Macdonald Laboratory, Department of Physics, Kansas State University, USA
    • J. R. Macdonald Laboratory, Department of Physics, Kansas State University

  • Y. Malakar

    • J. R. Macdonald Laboratory, Department of Physics, Kansas State University, USA
    • Kansas State University

  • Kanaka Raju P.

    • Kansas State University
    • J. R. Macdonald Laboratory, Department of Physics, Kansas State University, USA
    • J. R. Macdonald Laboratory, Physics Department, Kansas State University, Manhattan, KS 66506 USA

  • T. Severt

    • J.R. Macdonald Laboratory, Department of Physics, Kansas State University, Manhattan, KS 66506 USA
    • Kansas State University
    • J. R. Macdonald Laboratory, Kansas State University
    • J. R. Macdonald Laboratory, Physics Department, Kansas State University, Manhattan, KS 66506 USA
    • J.R. Macdonald Laboratory, Physics Department, Kansas State University, Manhattan, KS 66506, USA

  • I. Ben-Itzhak

    • J.R. Macdonald Laboratory, Department of Physics, Kansas State University, Manhattan, KS 66506 USA
    • Kansas State University
    • J. R. Macdonald Laboratory, Department of Physics, Kansas State University, USA
    • J. R. Macdonald Laboratory, Physics Department, Kansas State University
    • J. R. Macdonald Laboratory, Physics Department, Kansas State University, Manhattan, KS 66506 USA

  • A. Rudenko

    • Kansas State University
    • J. R. Macdonald Laboratory, Department of Physics, Kansas State University, USA
    • J. R. Macdonald Laboratory, Department of Physics, Kansas State University

  • D. Rolles

    • J.R. Macdonald Laboratory, Kansas State University, USA
    • Kansas State University
    • J. R. Macdonald Laboratory, Department of Physics, Kansas State University, USA
    • J. R. Macdonald Laboratory, Department of Physics, Kansas State University