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Issue 29, 2015
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Molecular dynamics of NH3 induced by core-electron excitation

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Abstract

Nuclear motion in the N1s−14a11 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.

Graphical abstract: Molecular dynamics of NH3 induced by core-electron excitation

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Article information


Submitted
22 May 2015
Accepted
23 Jun 2015
First published
25 Jun 2015

This article is Open Access

Phys. Chem. Chem. Phys., 2015,17, 18944-18952
Article type
Paper

Molecular dynamics of NH3 induced by core-electron excitation

N. Walsh, A. Sankari, J. Laksman, T. Andersson, S. Oghbaie, F. Afaneh, E. P. Månsson, M. Gisselbrecht and S. L. Sorensen, Phys. Chem. Chem. Phys., 2015, 17, 18944
DOI: 10.1039/C5CP02959G

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