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Femtosecond x-ray photoelectron diffraction on gas-phase dibromobenzene molecules

MPS-Authors
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Rolles,  Daniel
Department of Biomolecular Mechanisms, Max Planck Institute for Medical Research, Max Planck Society;

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Foucar,  Lutz
Department of Biomolecular Mechanisms, Max Planck Institute for Medical Research, Max Planck Society;

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Krasniqi,  Faton
Department of Biomolecular Mechanisms, Max Planck Institute for Medical Research, Max Planck Society;

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Schlichting,  Ilme
Department of Biomolecular Mechanisms, Max Planck Institute for Medical Research, Max Planck Society;

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Citation

Rolles, D., Boll, R., Adolph, M., Aquila, A., Bostedt, C., Bozek, J. D., et al. (2014). Femtosecond x-ray photoelectron diffraction on gas-phase dibromobenzene molecules. Journal of Physics B, 47(12): 124035. doi:10.1088/0953-4075/47/12/124035.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0026-D171-E
Abstract
We present time-resolved femtosecond photoelectron momentum images and angular distributions of dissociating, laser-aligned 1,4-dibromobenzene (C6H4Br2) molecules measured in a near-infrared pump, soft-x-ray probe experiment performed at an x-ray free-electron laser. The observed alignment dependence of the bromine 2p photoelectron angular distributions is compared to density functional theory calculations and interpreted in terms of photoelectron diffraction. While no clear time-dependent effects are observed in the angular distribution of the Br(2p) photoelectrons, other, low-energy electrons show a pronounced dependence on the time delay between the near-infrared laser and the x-ray pulse