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Investigating the UV-induced isomerization of Norbornadiene to Quadricyclane using ultrafast X-ray scattering

ORAL

Abstract

The UV-induced isomerization of norbornadiene (NB) to quadricyclane (QC) is investigated using femtosecond gas-phase X-ray (16 keV) scattering. The 200-nm UV excites NB to the 3p Rydberg state, from where it isomerizes to QD via a conical intersection within sub-100-fs. Our preliminary results indicate that subsequent to the isomerization, which can be resolved due to the short pulse durations of both UV and X-ray pulses, the molecule is likely to dissociate into smaller products. Time-resolved identification of the isomerization and dissociation products and involved transient intermediates will elucidate this photochemical reaction. These findings are supported by ab initio calculations.

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Presenters

  • Surjendu Bhattacharyya

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

Authors

  • Surjendu Bhattacharyya

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

  • Artem Rudenko

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

  • Peter M Weber

    Brown University

  • Martin Centurion

    University of Nebraska - Lincoln, Department of Physics and Astronomy, University of Nebraska–Lincoln, Lincoln, NE, USA

  • Michael Minitti

    SLAC National Accelerator Laboratory, SLAC Natl Accelerator Lab

  • Adam Kirrander

    University of Oxford, Oxford University

  • Daniel Rolles

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