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

MPS-Authors
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Quevedo,  W.
Research Group of Structural Dynamics of (Bio)Chemical Systems, MPI for biophysical chemistry, Max Planck Society;

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Rajkovic,  I.
Research Group of Structural Dynamics of (Bio)Chemical Systems, MPI for biophysical chemistry, Max Planck Society;

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Techert,  S.
Research Group of Structural Dynamics of (Bio)Chemical Systems, MPI for biophysical chemistry, Max Planck Society;

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2034437_Suppl.pdf
(Supplementary material), 376KB

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-0000-0019-CDFB-8
Abstract
We present time-resolved femtosecond photoelectron momentum images and angular distributions of dissociating, laser-aligned 1,4-dibromobenzene (C 6H 4Br 2) 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.