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Journal Article

Femtosecond photoelectron diffraction on laser-aligned molecules: Towards time-resolved imaging of molecular structure.

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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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1887443-Suppl.pdf
(Supplementary material), 383KB

Citation

Boll, R., Anielski, D., Bostedt, C., Bozek, J. D., Christensen, L., Coffee, R., et al. (2013). Femtosecond photoelectron diffraction on laser-aligned molecules: Towards time-resolved imaging of molecular structure. Physical Review A, 88(6): 061402. doi:10.1103/PhysRevA.88.061402.


Cite as: http://hdl.handle.net/11858/00-001M-0000-0014-D121-0
Abstract
We demonstrate an experimental method to record snapshot diffraction images of polyatomic gas-phase molecules, which can, in a next step, be used to probe time-dependent changes in the molecular geometry during photochemical reactions with femtosecond temporal and angstrom spatial resolution. Adiabatically laser-aligned 1-ethynyl-4-fluorobenzene (C 8H 5F) molecules were imaged by diffraction of photoelectrons with kinetic energies between 31 and 62 eV, created from core ionization of the fluorine (1s) level by ap80 fs x-ray free-electron-laser pulses. Comparison of the experimental photoelectron angular distributions with density functional theory calculations allows relating the diffraction images to the molecular structure.