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

Rolles, Daniel; Boll , R; Adolph, M; Aquila, A; Bostedt, C; Bozek, J D; Chapman, H N; Coffee, R; Coppola, N; Decleva, P; Delmas, T; Epp, S W; Erk, B; Filsinger, Frank; Foucar, L; Gumprecht, L; Hömke, A; Gorkhover, T; Holmegaard, L; Johnsson, P; Kaiser, Ch; Krasniqi, Faton; Kühnel, K-U; Maurer, J; Messerschmidt, M; Moshammer, R; Quevedo, Wilson; Rajkovic, Ivan; Rouzée, A; Rudek, B; Schlichting, Ilme; Schmidt, C; Schorb, S; Schröter, C D; Schulz, J; Stapelfeldt, H; Stener, M; Stern, S; Techert, Simone; Thøgersen, J; Vrakking, M J J; Rudenko, A; Küpper, Jochen; Ullrich, J

doi:10.1088/0953-4075/47/12/124035

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

MPS-Authors

Rolles, Daniel
Max Planck Advanced Study Group at CFEL;
Deutsches Elektronen-Synchrotron (DESY);
Department of Biomolecular Mechanisms, Max Planck Institute for Medical Research, Max Planck Society;

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Filsinger, Frank
Molecular Physics, Fritz Haber Institute, Max Planck Society;
Bruker AXS GmbH;

Foucar, L
Max Planck Advanced Study Group at CFEL;
Department of Biomolecular Mechanisms, Max Planck Institute for Medical Research, Max Planck Society;

Krasniqi, Faton
Max Planck Advanced Study Group at CFEL;
Department of Biomolecular Mechanisms, Max Planck Institute for Medical Research, Max Planck Society;
Max Planck Institute for Structure and Dynamics of Matter;

Quevedo, Wilson
Research Group of Structural Dynamics of (Bio)Chemical Systems, MPI for biophysical chemistry, Max Planck Society;
Helmholtz-Zentrum Berlin;

Rajkovic, Ivan
Research Group of Structural Dynamics of (Bio)Chemical Systems, MPI for biophysical chemistry, Max Planck Society;
Paul-Scherrer-Institut;

Schlichting, Ilme
Max Planck Advanced Study Group at CFEL;
Department of Biomolecular Mechanisms, Max Planck Institute for Medical Research, Max Planck Society;

Techert, Simone
Deutsches Elektronen-Synchrotron (DESY);
Research Group of Structural Dynamics of (Bio)Chemical Systems, MPI for biophysical chemistry, Max Planck Society;
Institute of X-ray Physics, Göttingen University;

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Küpper, Jochen
Max Planck Advanced Study Group at CFEL;
Center for Free-Electron Laser Science, DESY;
Department of Physics, University of Hamburg;
The Hamburg Center for Ultrafast Imaging, University of Hamburg;
Molecular Physics, Fritz Haber Institute, 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: https://hdl.handle.net/11858/00-001M-0000-0019-D825-6

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.