R. Boll, D. Anielski, C. Bostedt
Dec 6, 2013
Citations
1
Influential Citations
75
Citations
Quality indicators
Journal
Physical Review A
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${}_{8}$H${}_{5}$F) 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 $\ensuremath{\approx}80$ 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.