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Walsh N, Sankari A, Laksman J, et al. Molecular dynamics of NH3 induced by core-electron excitation. Phys Chem Chem Phys. 2015;17(29):18944-52doi: 10.1039/c5cp02959g.
Walsh, N., Sankari, A., Laksman, J., Andersson, T., Oghbaie, S., Afaneh, F., Månsson, E. P., Gisselbrecht, M., & Sorensen, S. L. (2015). Molecular dynamics of NH3 induced by core-electron excitation. Physical chemistry chemical physics : PCCP, 17(29), 18944-52. https://doi.org/10.1039/c5cp02959g
Walsh, Noelle, et al. "Molecular dynamics of NH3 induced by core-electron excitation." Physical chemistry chemical physics : PCCP vol. 17,29 (2015): 18944-52. doi: https://doi.org/10.1039/c5cp02959g
Walsh N, Sankari A, Laksman J, Andersson T, Oghbaie S, Afaneh F, Månsson EP, Gisselbrecht M, Sorensen SL. Molecular dynamics of NH3 induced by core-electron excitation. Phys Chem Chem Phys. 2015 Jul 15;17(29):18944-52. doi: 10.1039/c5cp02959g. PMID: 26129695.
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Phys Chem Chem Phys. 2015 Jul 15;17(29):18944-52. doi: 10.1039/c5cp02959g.

Molecular dynamics of NH3 induced by core-electron excitation.

Physical chemistry chemical physics : PCCP

Noelle Walsh, Anna Sankari, Joakim Laksman, Tomas Andersson, Shabnam Oghbaie, Feras Afaneh, Erik P Månsson, Mathieu Gisselbrecht, Stacey L Sorensen

Affiliations

  1. Division of Synchrotron Radiation Research, Department of Physics, Lund University, Box 118, 22100 Lund, Sweden. [email protected].

PMID: 26129695 DOI: 10.1039/c5cp02959g

Abstract

Nuclear motion in the N1s(-1)4a core-excited state of ammonia is investigated by studying the angular anisotropy of fragments produced in the decay of the highly excited molecule and compared with predictions from ab initio calculations. Two different fragmentation channels (H(+)/NH2(+) and H(+)/NH(+)/H) reveal complex nuclear dynamics as the excitation photon energy is tuned through the 4a1 resonance. The well-defined angular anisotropy of the fragments produced in the dissociation of the molecular dication species suggests a very rapid nuclear motion and the time scale of the nuclear dynamics is limited to the low fs timescale.

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